CN101177069B - Ink supply system and method of managing ink amount supplied by the system - Google Patents

Abstract

Translated fromChinese

本发明提供一种供墨系统和管理系统供墨量的方法。在喷墨记录装置中，至少一个主箱中储存墨水。多个次箱与每个主箱连通。每个次箱储存从主箱供给的墨水。每个次箱与至少一个记录头连通。

The invention provides an ink supply system and a method for managing the ink supply quantity of the system. In an inkjet recording apparatus, ink is stored in at least one main tank. A plurality of secondary tanks communicate with each primary tank. Each sub tank stores ink supplied from the main tank. Each sub-box communicates with at least one recording head.

Description

Translated fromChinese

供墨系统和管理系统供墨量的方法Ink supply system and method of managing ink supply of the system

本申请系母案(申请号：02105418.5)的分案。This application is a divisional case of the parent case (application number: 02105418.5).

技术领域technical field

本发明涉及一种用墨水在记录介质上记录信息的喷墨记录装置、控制该装置的方法以及把储存在主墨箱中的墨水补充到用于暂时存放补充墨水的次箱中的方法。The present invention relates to an ink jet recording apparatus for recording information on a recording medium with ink, a method of controlling the apparatus, and a method of replenishing ink stored in a main ink tank into a sub tank for temporarily storing supplementary ink.

另外，本发明还涉及一种包含在上述喷墨记录装置中的供墨系统，以及管理供墨系统执行的供墨量的方法。In addition, the present invention also relates to an ink supply system included in the above inkjet recording apparatus, and a method of managing the amount of ink supply performed by the ink supply system.

背景技术Background technique

近来，配置有CCD(电子耦合装置)和记忆装置的数字相机已广泛用于替代使用卤化银胶片的相机。由此数字相机拍摄的照片被记录装置记录到记录介质上。做为此记录装置，例如采用喷墨打印机，做为记录介质，例如采用打印纸。在采用卤化银胶片并且在相纸上打印图象、由此得到照片的实验室环境下，安装喷墨打印机，以便打印数字图象。Recently, a digital camera equipped with a CCD (electronic coupling device) and a memory device has been widely used in place of a camera using a silver halide film. Photographs taken by this digital camera are recorded on a recording medium by a recording device. As the recording device, for example, an inkjet printer is used, and as the recording medium, for example, printing paper is used. In a laboratory environment where photographs are obtained using silver halide film and printing the images on photographic paper, an inkjet printer is installed to print digital images.

在此喷墨打印机中，对墨箱供给的墨水加压并射出墨滴的记录头在纸张的宽度方向往复运动，由此执行打印。通过此系统执行大量打印的喷墨打印机包括一个具有用于各种颜色的较大容积的主墨箱(以下称作主箱)，和一个具有用于各种颜色的较小容积的次箱(以下称作次箱)，次箱通过一根管子与每个主箱连结。次箱由一种挠性材料不透气地形成，该材料具有袋形状的灵活性，因而容积可以变化。In this inkjet printer, a recording head that pressurizes ink supplied from an ink tank and ejects ink droplets reciprocates in a width direction of paper, thereby performing printing. An inkjet printer that performs a large amount of printing by this system includes a main tank (hereinafter referred to as the main tank) having a larger volume for each color, and a sub tank (hereinafter referred to as the main tank) having a smaller volume for each color ( Hereinafter referred to as secondary tanks), the secondary tanks are connected to each main tank by a pipe. The secondary box is airtightly formed of a flexible material which has the flexibility of bag shape so that the volume can be varied.

做为提高实验室中单位时间的打印数量的方法，考虑操作多个喷墨打印机。但是，因为需要很多主箱(喷墨打印机的数量乘以颜色的数量)，所以在置换主箱上存在问题。As a method of increasing the number of prints per unit time in a laboratory, consider operating multiple inkjet printers. However, since many master tanks are required (the number of inkjet printers multiplied by the number of colors), there is a problem in replacing the master tanks.

在从每种颜色的一个主箱向多个喷墨打印机的每种颜色的打印头供给墨水的情况下，仅需要主箱的数量为颜色的数量。但是，在记录头中的喷墨量很大的情况下，供墨通道中的动压变大，以致于供墨运行的时间很短，并且打印质量降低。In the case where ink is supplied from one master tank for each color to the print heads of each color of a plurality of inkjet printers, the number of master tanks is only required to be the number of colors. However, in the case where the ejection amount of the ink in the recording head is large, the dynamic pressure in the ink supply passage becomes large, so that the time of the ink supply operation is short and the printing quality is lowered.

另外，因为由于喷墨打印机中主箱和打印头之间供墨通道的长度差异而产生动压，所以各个喷墨打印机中的供墨量不同。例如，在水平放置多个喷墨打印机的情况下，远离主箱放置的喷墨打印机具有最长的墨流通道。因此，在喷墨打印机中，供墨时间变得最长。相反，因为最接近主箱放置的喷墨打印机具有最短的墨流通道，所以供墨时间变得最短。In addition, since dynamic pressure is generated due to a difference in length of an ink supply channel between a main tank and a print head in an inkjet printer, the amount of ink supply varies among inkjet printers. For example, in the case of a plurality of inkjet printers placed horizontally, the inkjet printer placed farther from the main box has the longest ink flow path. Therefore, in the inkjet printer, the ink supply time becomes longest. On the contrary, since the inkjet printer placed closest to the main tank has the shortest ink flow path, the ink supply time becomes the shortest.

在主箱布置在最低位置并且在垂直方向放置多个喷墨打印机的情况下，位于顶部的喷墨打印机具有最长的墨流通道，还由于打印头差异而具有最大的压力损失，以致于供墨时间变得最长。相反，位于最低位置的喷墨打印机具有最短的墨流通道，还由于打印头差异而具有最小的压力损失，以致于供墨时间变得最短。In the case where the main box is arranged at the lowest position and multiple inkjet printers are placed vertically, the inkjet printer at the top has the longest ink flow channel and also has the largest pressure loss due to the print head difference, so that the supply The ink time becomes longest. On the contrary, the inkjet printer located at the lowest position has the shortest ink flow path and also has the smallest pressure loss due to the print head difference, so that the ink supply time becomes the shortest.

另外，因为在图象打印中多个喷墨打印机的耗墨量较大，所以墨量管理非常重要。通常是管理每个喷墨打印机的此墨量。In addition, since the ink consumption of a plurality of inkjet printers is large in image printing, ink quantity management is very important. This amount of ink is normally managed for each inkjet printer.

发明内容Contents of the invention

本发明的一个目的在于提供一种喷墨打印装置，其中主箱可以容易地更换，墨水可以有效地供给多个记录单元而不会导致打印质量的衰减。An object of the present invention is to provide an ink jet printing apparatus in which a main tank can be easily replaced and ink can be efficiently supplied to a plurality of recording units without causing degradation in print quality.

本发明的另一目的在于提供一种可靠地管理供墨量的供墨系统以及管理供墨系统执行的供墨量的方法。Another object of the present invention is to provide an ink supply system that reliably manages the amount of ink supply and a method of managing the amount of ink supply performed by the ink supply system.

为了实现上述目的本发明第一方面的供墨系统，包括：In order to achieve the above object, the ink supply system of the first aspect of the present invention includes:

一个主箱，墨水储存其中；a main tank in which the ink is stored;

多个次箱，与所述主箱连通，每个次箱与至少一个记录部分连通；和a plurality of secondary boxes in communication with said main box, each secondary box in communication with at least one recording section; and

系统控制器，监视每个次箱中消耗的墨量，从而管理主箱中的剩余墨量，其中，系统控制器把所有次箱中消耗的总墨量认做主箱中消耗的墨量。The system controller monitors the amount of ink consumed in each sub-tank, thereby managing the remaining amount of ink in the main tank, wherein the system controller regards the total amount of ink consumed in all the sub-tanks as the amount of ink consumed in the main tank.

为了实现上述目的，根据本发明，提供了一种喷墨记录装置，该装置包括：In order to achieve the above object, according to the present invention, an inkjet recording device is provided, which comprises:

至少一个主箱，墨水储存其中；和at least one main tank in which ink is stored; and

多个次箱，与每个主箱连通，每个次箱储存主箱供给的墨水并至少与一个记录头连通。A plurality of sub-tanks communicate with each main tank, each sub-tank stores ink supplied from the main tank and communicates with at least one recording head.

在此结构中，因为墨水被从一个主箱供给到多个次箱，所以即使使用多个打印机，主箱也易于更换。另外，主箱和每个次箱之间供墨通道中的动压不影响记录头的记录，以致于可以保持打印质量。In this structure, since ink is supplied from one main tank to a plurality of sub tanks, the main tank can be easily replaced even if a plurality of printers are used. In addition, the dynamic pressure in the ink supply path between the main tank and each sub tank does not affect the recording of the recording head, so that the printing quality can be maintained.

最好提供多个主箱，以使当主箱中的剩余墨量很少时，可以迅速地更换为另一个主箱而不中断记录操作。之后，空主箱可以用一个新的替换。It is preferable to provide a plurality of main tanks so that when the amount of ink remaining in the main tank is small, it can be quickly replaced with another without interrupting the recording operation. Afterwards, the empty main box can be replaced with a new one.

最好将次箱布置在垂直方向，使得多个记录装置的空间轮廓可以减小，并且可以增大单位面积的打印机数量。It is preferable to arrange the sub-boxes in the vertical direction so that the spatial profile of the plurality of recording devices can be reduced and the number of printers per unit area can be increased.

最好通过用一种具有挠性的材料形成密不透气的每个次箱，使得次箱的容积可以变化。因为不必将墨流通道打开到大气，所以可以在保持墨水排气状态的同时进行记录。Preferably, the volume of the sub-tanks can be varied by forming each of the sub-tanks airtight from a material having flexibility. Since it is not necessary to open the ink flow path to the atmosphere, recording can be performed while maintaining the ink exhaust state.

此处，最好每个次箱包含一个片状元件，防止次箱的内表面彼此粘结。次箱收缩时会出现由于内表面粘结所致的一些麻烦。Here, it is preferable that each sub-tank contains a sheet-like member to prevent the inner surfaces of the sub-tanks from sticking to each other. There is some trouble with the shrinkage of the sub-box due to the bonding of the inner surface.

另外，最好在片状元件的表面上形成凹槽，使得从主箱供给的墨水可以通过凹槽导引墨水而平稳地进入次箱。In addition, it is preferable to form grooves on the surface of the sheet member so that the ink supplied from the main tank can be guided into the sub tank smoothly by guiding the ink through the grooves.

最好该喷墨记录装置还包括：Preferably the inkjet recording device further comprises:

第一墨量探测器，探测储存在每个次箱中的墨量；和a first ink level detector for detecting the amount of ink stored in each sub-tank; and

第一供墨量控制器，根据第一墨量探测器的探测结果控制流入到每个次箱中的供墨量。The first ink supply volume controller controls the ink supply volume flowing into each sub-tank according to the detection result of the first ink volume detector.

在此结构中，既使在主箱和次箱中存在高度差，也可以避免两箱之间的倒流。In this structure, even if there is a height difference between the main box and the secondary box, backflow between the two boxes can be avoided.

此处，最好把第一供墨控制器设置为一个第一阀门元件。当第一墨量探测器探测到储存在次箱中的墨量位于第一预定水平或更低的墨少状态时，第一阀门元件打开。当第一墨量探测器探测到储存在次箱中的墨量位于第二预定水平或更多的墨满状态时，第一阀门元件关闭。因为可以避免次箱中的墨水运行的时间太短，所以墨水可以充分地提供给耗墨量很大的多个记录装置。Here, it is preferable to configure the first ink supply controller as a first valve member. When the first ink amount detector detects an ink low state in which the amount of ink stored in the sub tank is at a first predetermined level or lower, the first valve member is opened. The first valve member is closed when the first ink level detector detects a full state where the amount of ink stored in the sub tank is at a second predetermined level or more. Since the ink in the sub tank can be prevented from running for too short a time, the ink can be sufficiently supplied to a plurality of recording devices which consume a large amount of ink.

另外，最好该装置还包括一个第二供墨量控制器，控制流出主箱的供墨量。因为从主箱到次箱的供墨通道可以在主箱一侧关闭，所以可以更换主箱而不导致供墨通道中的空气混合以及打印操作期间墨水泄漏。In addition, it is preferred that the apparatus further includes a second ink supply controller for controlling the ink supply flow out of the main tank. Since the ink supply channel from the main tank to the sub tank can be closed on the main tank side, the main tank can be replaced without causing air mixing in the ink supply channel and ink leakage during printing operations.

此处，最好把第二供墨量控制器设置成一个第二阀门元件。主箱被压缩时首先打开第二阀门元件，并再打开第一阀门元件以向次箱供墨。当出现第一阀门的加压控制误差或控制误差时，可以通过关闭第二阀门而把墨流系统布置在安全的一侧。因此，供墨控制的可靠性可以提高。Here, it is preferable to provide the second ink supply amount controller as a second valve member. When the main tank is compressed, the second valve element is first opened, and then the first valve element is opened to supply ink to the secondary tank. When the pressurization control error or control error of the first valve occurs, the ink flow system can be arranged on the safe side by closing the second valve. Therefore, the reliability of ink supply control can be improved.

另外，最好当补充次箱时首先关闭第一阀门元件并取消主箱的压缩，并再关闭第二阀门元件，使得避免装置不激励的情形，同时将第一阀门元件和第二阀门元件之间的供墨通道保持在加压状态，并且长时间使用时留下供墨通道。因此，可以防止墨水从供墨通道的泄漏，并且可以提高安全性。In addition, it is preferable to first close the first valve element and remove the compression of the main tank when replenishing the secondary tank, and then close the second valve element, so as to avoid the situation that the device does not actuate, and at the same time the first valve element and the second valve element are closed. The ink supply channel between them is kept under pressure, and the ink supply channel is left when used for a long time. Therefore, leakage of ink from the ink supply channel can be prevented, and safety can be improved.

最好次箱与多个记录头连通，使得通过多个记录头的布局可以提高设计的自由度。It is preferable that the sub-tank communicates with a plurality of recording heads so that the degree of freedom in design can be increased by the layout of the plurality of recording heads.

最好主箱和次箱布置成在二者之间提供一种高差，从而把墨水从主箱提供给次箱。因为由于高差，主箱总是处于加压状态，所以可以通过简单的结构安全地供应墨水。Preferably the main tank and the secondary tank are arranged to provide a height difference therebetween for supplying ink from the main tank to the secondary tank. Because the main tank is always pressurized due to the difference in height, ink can be supplied safely with a simple structure.

最好压缩主箱以把墨水供给次箱，使得即使主箱布置在次箱之下，也可以安全地供墨。此处最好通过泵浦元件压缩主箱。It is preferable to compress the main tank to supply ink to the sub tank so that ink can be supplied safely even if the main tank is arranged under the sub tank. Here the main tank is preferably compressed by the pump element.

另外，泵浦元件最好通过一个把主箱向大气打开的空气释放装置连结到主箱。当不需要供墨时，可以释解受压状态，使得可以消除由于保持受压状态所致的装置破损。因此，可以提高可靠性，并且可以提高就加压控制误差和供墨误差而言的安全性。In addition, the pumping element is preferably connected to the main tank by an air relief device which opens the main tank to the atmosphere. When ink supply is not required, the pressurized state can be released, so that damage to the device due to maintaining the pressurized state can be eliminated. Therefore, reliability can be improved, and safety in terms of pressurization control error and ink supply error can be improved.

根据本发明，还提供了一种喷墨记录装置，包括：According to the present invention, there is also provided an inkjet recording device, comprising:

至少一个主箱，墨水储存其中；at least one master tank in which ink is stored;

多个记录部分，与每个主箱连通，每个记录部分包括一个储存从主箱供给的墨水的次箱和至少一个与次箱连通的记录头；和a plurality of recording sections communicating with each main tank, each recording section including a sub tank storing ink supplied from the main tank and at least one recording head communicating with the sub tank; and

一个系统控制器，控制主箱和记录部分，使得从主箱向次箱供墨所需时间较短的记录部分有较高的优先控制权。A system controller controls the main tank and the recording section so that the recording section which requires a shorter time to supply ink from the main tank to the sub tank has a higher priority.

最好连结主箱和次箱的路径长度较短的记录部分有较高的优先控制权。It is preferable to have higher priority control for the portion of the record with a shorter path length linking the primary box and the secondary box.

在记录量增大的情况下，因为由大量的墨水分配到供墨完成迅速的记录单元，所以可以减少供墨时间。In the case where the recording volume is increased, the ink supply time can be reduced because a large amount of ink is dispensed to the recording unit whose ink supply is completed quickly.

最好每个次箱由一种具有挠性的材料密不透气地形成，使得次箱的容积可以改变。因为不需要把墨流通道向大气敞开，所以可以在执行记录的同时保持墨水的脱气状态。Preferably, each sub-tank is airtightly formed of a material having flexibility so that the volume of the sub-tank can be changed. Since it is not necessary to open the ink flow path to the atmosphere, it is possible to maintain the degassed state of the ink while performing recording.

此处，最好每个次箱包含一个片状元件，防止次箱的内表面彼此粘结。次箱收缩时会出现由于内表面粘结所致的一些麻烦。Here, it is preferable that each sub-tank contains a sheet-like member to prevent the inner surfaces of the sub-tanks from sticking to each other. There is some trouble with the shrinkage of the sub-box due to the bonding of the inner surface.

另外，最好在片状元件的表面上形成凹槽，使得从主箱供给的墨水可以通过凹槽导引墨水而平稳地进入次箱。In addition, it is preferable to form grooves on the surface of the sheet member so that the ink supplied from the main tank can be guided into the sub tank smoothly by guiding the ink through the grooves.

最好喷墨记录装置还包括：Preferably, the inkjet recording device further comprises:

第一墨量探测器，探测储存在每个次箱中的墨量；和a first ink level detector for detecting the amount of ink stored in each sub-tank; and

第一供墨量控制器，根据第一墨量探测器的探测结果控制流入到每个次箱中的供墨量。The first ink supply volume controller controls the ink supply volume flowing into each sub-tank according to the detection result of the first ink volume detector.

在此结构中，既使在主箱和次箱中存在高度差，也可以避免两箱之间的倒流。In this structure, even if there is a height difference between the main box and the secondary box, backflow between the two boxes can be avoided.

此处，最好把第一供墨控制器设置为一个第一阀门元件。当第一墨量探测器探测到储存在次箱中的墨量位于第一预定水平或更低的少墨状态时，第一阀门元件打开。当第一墨量探测器探测到储存在次箱中的墨量位于第二预定水平或更多的墨满状态时，第一阀门元件关闭。因为可以避免次箱中的墨水运行的时间太短，所以墨水可以充分地提供给耗墨量很大的多个记录装置。Here, it is preferable to configure the first ink supply controller as a first valve member. When the first ink amount detector detects an ink low state in which the amount of ink stored in the sub tank is at a first predetermined level or lower, the first valve member is opened. The first valve member is closed when the first ink level detector detects a full state where the amount of ink stored in the sub tank is at a second predetermined level or more. Since the ink in the sub tank can be prevented from running for too short a time, the ink can be sufficiently supplied to a plurality of recording devices which consume a large amount of ink.

另外，最好该装置还包括一个第二供墨量控制器，控制流出主箱的供墨量。因为从主箱到次箱的供墨通道可以在主箱一侧关闭，所以可以更换主箱而不导致供墨通道中的空气混合以及打印操作期间墨水泄漏。In addition, it is preferred that the apparatus further includes a second ink supply controller for controlling the ink supply flow out of the main tank. Since the ink supply channel from the main tank to the sub tank can be closed on the main tank side, the main tank can be replaced without causing air mixing in the ink supply channel and ink leakage during printing operations.

此处，最好把第二供墨量控制器设置成一个第二阀门元件。主箱被压缩时首先打开第二阀门元件，并再打开第一阀门元件以向次箱供墨。当出现第一阀门的加压控制误差或控制误差时，可以通过关闭第二阀门而把墨流系统布置在安全的一侧。因此，供墨控制的可靠性可以提高。Here, it is preferable to provide the second ink supply amount controller as a second valve member. When the main tank is compressed, the second valve element is first opened, and then the first valve element is opened to supply ink to the secondary tank. When the pressurization control error or control error of the first valve occurs, the ink flow system can be arranged on the safe side by closing the second valve. Therefore, the reliability of ink supply control can be improved.

另外，最好当补充次箱时首先关闭第一阀门元件并取消主箱的压缩，并再关闭第二阀门元件，使得避免装置不激励的情形，同时将第一阀门元件和第二阀门元件之间的供墨通道保持在加压状态，并且长时间使用时留下供墨通道。因此，可以防止墨水从供墨通道的泄漏，并且可以提高安全性。In addition, it is preferable to first close the first valve element and remove the compression of the main tank when replenishing the secondary tank, and then close the second valve element, so as to avoid the situation that the device does not actuate, and at the same time the first valve element and the second valve element are closed. The ink supply channel between them is kept under pressure, and the ink supply channel is left when used for a long time. Therefore, leakage of ink from the ink supply channel can be prevented, and safety can be improved.

最好次箱与多个记录头连通，使得通过多个记录头的布局可以提高设计的自由度。It is preferable that the sub-tank communicates with a plurality of recording heads so that the degree of freedom in design can be increased by the layout of the plurality of recording heads.

最好主箱和次箱布置成在二者之间提供一种高差，从而把墨水从主箱提供给次箱。因为由于高差，主箱总是处于加压状态，所以可以通过简单的结构安全地供应墨水。Preferably the main tank and the secondary tank are arranged to provide a height difference therebetween for supplying ink from the main tank to the secondary tank. Because the main tank is always pressurized due to the difference in height, ink can be supplied safely with a simple structure.

最好压缩主箱以把墨水供给次箱，使得既使主箱布置在次箱之下，也可以安全地供墨。此处最好通过泵浦元件压缩主箱。It is preferable to compress the main tank to supply the ink to the sub tank so that the ink can be safely supplied even if the main tank is arranged under the sub tank. Here the main tank is preferably compressed by the pump element.

另外，泵浦元件最好通过一个把主箱向大气打开的空气释放装置连结到主箱。当不需要供墨时，可以释解受压状态，使得可以消除由于保持受压状态所致的装置破损。因此，可以提高可靠性，并且可以提高就加压控制误差和供墨误差而言的安全性。In addition, the pumping element is preferably connected to the main tank by an air relief device which opens the main tank to the atmosphere. When ink supply is not required, the pressurized state can be released, so that damage to the device due to maintaining the pressurized state can be eliminated. Therefore, reliability can be improved, and safety in terms of pressurization control error and ink supply error can be improved.

根据本发明，还提供一种控制上述喷墨记录装置用墨水在记录介质上记录信息的方法。According to the present invention, there is also provided a method for controlling the inkjet recording device to record information on a recording medium with ink.

根据本发明，提供一种用储存在与次箱连通的主箱中的墨水最初填充次箱的方法，包括步骤：According to the present invention, there is provided a method of initially filling a secondary tank with ink stored in a primary tank in communication with the secondary tank, comprising the steps of:

a)对与次箱连通的记录头施加负压，压缩次箱的同时排放次箱中的空气；a) Apply negative pressure to the recording head connected to the secondary box, and discharge the air in the secondary box while compressing the secondary box;

b)步骤a)之后打开设置在主箱和次箱之间的阀门元件，从主箱向次箱供应墨水；b) After step a), the valve element arranged between the main tank and the secondary tank is opened to supply ink from the main tank to the secondary tank;

c)步骤b)之后关闭阀门元件；c) closing the valve element after step b);

d)步骤c)之后向记录头施加负压，压缩次箱的同时排放次箱中的空气和墨水；和d) applying negative pressure to the recording head after step c), compressing the sub-tank while discharging air and ink in the sub-tank; and

e)步骤d)之后打开阀门元件，从主箱向次箱供给墨水。e) After step d), the valve element is opened to supply ink from the main tank to the secondary tank.

从记录头经次箱到阀门元件的流径中的空气可以通过第一负压的应用而被耗尽，并且从阀门元件到主箱的流径中的空气可以通过第二负压的应用而被耗尽。因此，可以消除记录头到主箱的流径中的空气，并且可以改进填充次箱的墨水的脱气。The air in the flow path from the recording head through the secondary tank to the valve member can be depleted by the application of the first negative pressure, and the air in the flow path from the valve member to the main tank can be depleted by the application of the second negative pressure. was exhausted. Therefore, the air in the flow path from the recording head to the main tank can be eliminated, and the degassing of the ink filling the sub tank can be improved.

最好初始填充方法还包括：Preferably the initial filling method also includes:

f)步骤e)之后关闭阀门元件；f) closing the valve element after step e);

g)步骤f)之后对记录头施加负压，部分地排出次箱中的墨水；和g) applying a negative pressure to the recording head after step f), partially expelling the ink in the sub-tank; and

h)步骤g)之后打开阀门元件，把墨水从主箱供应到次箱。h) After step g) the valve element is opened to supply ink from the main tank to the secondary tank.

在受压的次箱中流动的墨水高速涌出气泡并丧失脱气。但是，通过在此状态下排出预定量的墨水并使得新墨水流入次箱，可以进一步改进填充次箱的墨水的脱气。Ink flowing in the pressurized sub-tank bubbles at high velocity and loses degassing. However, by discharging a predetermined amount of ink in this state and allowing new ink to flow into the sub-tank, degassing of the ink filling the sub-tank can be further improved.

或者，该初始填充法还包括：Alternatively, the initial fill method also includes:

f)步骤e)之后关闭阀门元件；和f) closing the valve element after step e); and

g)步骤f)之后对记录头施加负压，把墨水从次箱供应到记录头。g) After step f), a negative pressure is applied to the recording head to supply ink from the sub tank to the recording head.

因为记录头中的空气可以完全排出，所以可以维持墨滴的发射性能。Since the air in the recording head can be completely exhausted, the ejection performance of ink droplets can be maintained.

最好重复步骤c)至e)，从而完全消除从记录头到主箱的流经的空气，使得可以更加改进填充次箱的墨水的脱气。Steps c) to e) are preferably repeated, thereby completely eliminating the passage of air from the recording head to the main tank, so that the degassing of the ink filling the secondary tanks can be even more improved.

根据本发明，还提供一种用储存在与次箱连通的主箱中的墨水初始填充次箱的方法，包括步骤：According to the present invention, there is also provided a method of initially filling a secondary tank with ink stored in a primary tank communicating with the secondary tank, comprising the steps of:

a)对与次箱连通的记录头施加负压，压缩次箱的同时排放次箱中的空气；a) Apply negative pressure to the recording head connected to the secondary box, and discharge the air in the secondary box while compressing the secondary box;

b)步骤a)之后打开设置在主箱和次箱之间的阀门元件，从主箱向次箱供应墨水；b) After step a), the valve element arranged between the main tank and the secondary tank is opened to supply ink from the main tank to the secondary tank;

c)步骤b)之后关闭阀门元件；和c) closing the valve element after step b); and

d)步骤c)之后向记录头施加负压，从次箱向记录头供应墨水。d) Negative pressure is applied to the recording head after step c), and ink is supplied to the recording head from the sub tank.

根据本发明，还提供一种执行该初始填充法的喷墨记录装置。According to the present invention, there is also provided an inkjet recording apparatus that performs the initial filling method.

最好主箱位于次箱之上或位于之下，同时被压缩，使得不仅在对主箱加压、从而把墨水供给次箱的类型中，而且在主箱和次箱之间产生记录头差、从而供给墨水的类型中可以消除从记录头到主箱的流径中的空气。因此，可以提高填充次箱的墨水的脱气。It is preferable that the main tank is positioned above or below the sub tank while being compressed so that not only in the type in which the main tank is pressurized to supply ink to the sub tank, but also a recording head difference is generated between the main tank and the sub tank. , so that the type in which the ink is supplied can eliminate the air in the flow path from the recording head to the main tank. Therefore, degassing of the ink filling the sub-tank can be improved.

此处，次箱最好用一种具有挠性的材料密不透气地形成，使得次箱的容积可以变化。次箱包含一个片状元件，防止次箱的内表面彼此粘结。在此结构中，可以在次箱内部的任何地方提供均匀的加压状态，使得可以消除其中的剩余空气。Here, the sub-tank is preferably airtightly formed of a material having flexibility so that the volume of the sub-tank can be varied. The sub-box contains a sheet element that prevents the inner surfaces of the sub-box from sticking to each other. In this structure, a uniform pressurized state can be provided anywhere inside the sub-tank, so that residual air can be eliminated therein.

根据本发明，还提供一种供墨系统，包括：According to the present invention, there is also provided an ink supply system, comprising:

至少一个主箱，墨水储存其中；at least one master tank in which ink is stored;

多个次箱，与每个主箱连通，每个次箱与至少一个记录部分连通；和a plurality of secondary boxes in communication with each primary box, each secondary box in communication with at least one recording section; and

一个系统控制器，监视每个次箱中消耗的墨量，从而管理主箱中的剩余墨量。A system controller that monitors the amount of ink consumed in each secondary tank and thereby manages the amount of ink remaining in the main tank.

通过只管理一个主箱中的墨水来稳定对多个记录单元的供墨。Ink supply to multiple recording units is stabilized by managing ink in only one main tank.

次箱最好用一种具有挠性的材料密不透气地形成，使得次箱的容积可以变化。因为不需要把墨流通道敞向大气，所以可以在保持墨水脱气状态的同时执行记录。The sub-tank is preferably formed airtight from a material having flexibility so that the volume of the sub-tank can be varied. Since it is not necessary to open the ink flow path to the atmosphere, recording can be performed while maintaining the degassed state of the ink.

此处，每个次箱最好包含一个片状元件，防止次箱的内表面彼此粘结。次箱接触时会有内表面粘结所致的一些麻烦。Here, each sub-box preferably contains a sheet-like member, which prevents the inner surfaces of the sub-boxes from sticking to each other. There will be some troubles caused by bonding of the inner surface when the sub-boxes are in contact.

另外，最好在片状元件的表面上形成凹槽，使得从主箱供给的墨水可以通过凹槽导引墨水而平稳地进入次箱。In addition, it is preferable to form grooves on the surface of the sheet member so that the ink supplied from the main tank can be guided into the sub tank smoothly by guiding the ink through the grooves.

最好当储存在次箱中的墨量变为预定水平时，系统控制器开始计算次箱中消耗的墨量。因为在记录单元的记录操作期间已知次箱中的耗墨状态，所以便于进行对每个记录单元的墨水管理。Preferably, when the amount of ink stored in the sub-tank becomes a predetermined level, the system controller starts counting the amount of ink consumed in the sub-tank. Since the ink consumption state in the sub tank is known during the recording operation of the recording unit, ink management for each recording unit is facilitated.

此处，系统控制器最好把所有次箱中消耗的总墨量认做主箱中消耗的墨量，使得可以精确地知道主箱中消耗的墨量。Here, the system controller preferably regards the total amount of ink consumed in all the sub-tanks as the amount of ink consumed in the main tank, so that the amount of ink consumed in the main tank can be accurately known.

最好每次用主箱供给的墨水补充次箱时系统控制器都能获得每个次箱的耗墨量。算出的次箱中的总耗墨量和主箱中的耗墨量之间的精确度可以提高。另外，因为墨水供应给每个次箱，所以供给墨水以外的次箱用于记录，使得可以减少记录单元记录操作期间的中断次数。Preferably, the system controller obtains the ink consumption of each secondary tank each time the secondary tanks are replenished with ink supplied from the primary tank. The accuracy between the calculated total ink consumption in the secondary tank and the ink consumption in the main tank can be improved. In addition, since ink is supplied to each sub-tank, sub-tanks other than ink are supplied for recording, so that the number of interruptions during the recording operation of the recording unit can be reduced.

最好系统控制器给需要补充墨水的至少一个次箱选择供给墨水，并获得至少一个次箱中的耗墨量。从主箱到次箱的供墨时间的损失可以减少。Preferably, the system controller selectively supplies ink to at least one sub-tank requiring replenishment of ink, and obtains the amount of ink consumed in the at least one sub-tank. Loss of ink supply time from the main tank to the sub tank can be reduced.

最好系统控制器包含每个次箱的耗墨量，并且把墨水同时供给所有的次箱。从主箱到次箱的供墨时间损失可以减小。Preferably the system controller contains ink consumption for each sub-tank and supplies ink to all sub-tanks simultaneously. The ink supply time loss from the main tank to the sub tank can be reduced.

最好墨水流入到次箱中的流速大于墨水从与次箱相连的记录部分流出的流速。墨水从主箱到次箱的供给可以有保障的进行，并且能够避免记录单元不能进行记录操作的情形。Preferably, the flow rate of ink flowing into the sub tank is greater than the flow rate of ink flowing out from the recording portion connected to the sub tank. The supply of ink from the main tank to the sub tank can be guaranteed, and a situation where the recording unit cannot perform the recording operation can be avoided.

最好系统控制器在次箱中的耗墨量超过阈值水平时开始给次箱供墨。当次箱中的耗墨量较少时，由供墨导致的记录单元进行的记录操作的中断所致的损失可以减少。Preferably the system controller initiates supply of ink to the secondary tank when the amount of ink consumed in the secondary tank exceeds a threshold level. When the amount of ink consumed in the sub tank is small, losses due to interruption of the recording operation by the recording unit due to ink supply can be reduced.

此处，最好阈值水平包括记录部分执行记录时选定的第一阈值水平，和不执行记录时选定的小于第一阈值水平的第二阈值水平。可以有效地达到损耗减小。Here, it is preferable that the threshold level includes a first threshold level selected when the recording is performed by the recording section, and a second threshold level smaller than the first threshold level selected when the recording is not performed. Loss reduction can be effectively achieved.

另外，最好每个次箱至少配置有一个探测其中剩余墨量的探测器。当探测器进行探测时系统控制器停止供墨。供墨量可以精确地知道并且墨水成本可以减小。In addition, it is preferable that each sub-tank is provided with at least one detector for detecting the amount of ink remaining therein. The system controller stops ink supply when the detector detects. The amount of ink supply can be accurately known and ink costs can be reduced.

最好每个次箱至少配置有一个探测其中剩余墨量的探测器。当探测器探测到剩余墨水等于或小于预定水平时，系统控制器开始给次箱供给墨水。因为可以提高次箱中剩余墨量的探测精度，所以可以有效地执行从主箱向次箱的供墨。Preferably, each sub-tank is provided with at least one detector for detecting the amount of ink remaining therein. When the detector detects that the remaining ink is equal to or less than a predetermined level, the system controller starts supplying ink to the sub tank. Since the detection accuracy of the amount of ink remaining in the sub tank can be improved, ink supply from the main tank to the sub tank can be efficiently performed.

这里，最好给每个次箱配置多个探测器。当一个探测器进行探测时系统控制器开始给次箱供给墨水，并当另一个探测器进行探测时停止供墨。这样可以知道精确的剩余墨量。Here, it is best to assign multiple detectors to each sub-bin. The system controller starts supplying ink to the sub-tank when one detector detects, and stops ink supply when the other detector detects. This allows you to know the exact amount of remaining ink.

另外，最好唯一地设置探测器，使得剩余墨量探测器的成本可以降低。In addition, it is preferable to uniquely provide the sensor so that the cost of the remaining ink sensor can be reduced.

这里，最好在探测器进行探测期间系统控制器给次箱供墨，使得供墨时间可以减少。Here, it is preferable that the system controller supplies ink to the sub-tank during detection by the detector, so that the ink supply time can be reduced.

或者，最好在探测器进行探测期间系统控制器给次箱供给预定时间的墨水，使得供墨量可以增大。Alternatively, it is preferable that the system controller supplies ink to the sub tank for a predetermined time during detection by the sensor so that the ink supply amount can be increased.

最好在主箱和每个次箱之间设置一个阀门元件。当探测器探测到剩余墨量处于预定水平或更高水平时阀门元件关闭。因为可以确保探测到次箱中的剩余墨量，所以从主箱向次箱供墨不会出现麻烦。Preferably a valve element is provided between the main tank and each secondary tank. The valve member is closed when the detector detects that the amount of remaining ink is at a predetermined level or higher. Since the remaining amount of ink in the sub-tank can be surely detected, there is no trouble in supplying ink from the main tank to the sub-tank.

此处，最好每个阀门元件彼此独立地闭合。或者，最好每个阀门元件选择性地闭合。或者，所有的阀门元件同时闭合。由此可以很容易地执行从主箱向次箱的供墨。Here, preferably each valve element closes independently of one another. Alternatively, preferably each valve element is selectively closed. Alternatively, all valve elements are closed simultaneously. Ink supply from the main tank to the sub tank can thereby be easily performed.

此处，最好当次箱探测器中的至少一个探测器探测到一个次箱中的墨水几乎空了时所有的阀门元件都闭合。这样例如可以避免当所有的次箱阀门打开时墨水从较高的记录单元向较低的记录单元移动的情形。Here, preferably all valve members are closed when at least one of the sub-tank detectors detects that a sub-tank is almost empty of ink. This for example prevents ink from moving from higher to lower recording units when all sub-tank valves are open.

最好当系统被激励时系统控制器从主箱向每个次箱供墨。由从主箱向次箱供墨导致的记录单元记录操作的中断所致的损失可以减少。Preferably, the system controller supplies ink from the main tank to each of the secondary tanks when the system is activated. Losses due to interruption of the recording operation of the recording unit due to ink supply from the main tank to the sub tank can be reduced.

最好当过了预定的时间段时系统控制器从主箱向每个次箱供墨。即使设备被规律地激励，也可以确保执行从主箱向次箱的供墨。Preferably, the system controller supplies ink from the main tank to each of the sub tanks when a predetermined period of time has elapsed. Even if the device is energized regularly, ink supply from the main tank to the sub tank can be surely performed.

最好在获得每个次箱的耗墨量、从而计算主箱中的剩余墨量之后，每当记录部分执行记录时，系统控制器从主箱向次箱供墨。次箱中的总耗墨量变得等于主箱的耗墨量，并且可以确保执行从主箱到次箱的供墨。Preferably, the system controller supplies ink from the main tank to the sub tank whenever the recording section performs recording after obtaining the ink consumption of each sub tank to calculate the remaining ink amount in the main tank. The total ink consumption in the sub tank becomes equal to that of the main tank, and ink supply from the main tank to the sub tank can be surely performed.

最好每当记录部分执行记录、从而计算主箱中的剩余墨量时，系统控制器获得每个次箱中的耗墨量。当主箱中的剩余墨量为预定水平或更少时，在所有的记录部分中出现墨水终止状态。次箱中的总耗墨量变得等于主箱的耗墨量，并且可以确保进行从主箱到次箱的供墨。Preferably, the system controller obtains the amount of ink consumed in each sub-tank every time the recording section performs recording to calculate the remaining amount of ink in the main tank. When the remaining ink amount in the main tank is a predetermined level or less, an ink end state occurs in all recording portions. The total ink consumption in the sub tank becomes equal to that of the main tank, and ink supply from the main tank to the sub tank can be ensured.

此处最好记录部分继续记录，直到显示墨水终止状态之后次箱中的预定墨量也被消耗。精确计算主箱中的剩余墨量，并且次箱中的墨水不会无益地使用。Here it is preferable that the recording portion continues recording until the predetermined amount of ink in the sub tank is also consumed after the ink end state is displayed. The amount of ink remaining in the main tank is accurately calculated, and the ink in the secondary tank is not used unprofitably.

最好系统控制器连续地比较每个次箱中的耗墨量与主箱中的剩余墨量。当比较的次箱中的耗墨量少于剩余墨量时系统控制器把墨水供给比较的次箱。当耗墨量大于剩余墨量时显示墨水终止状态。可以确保执行从主箱向次箱的供墨。Preferably the system controller continuously compares the amount of ink consumed in each secondary tank with the amount of ink remaining in the main tank. The system controller supplies ink to the compared sub-tank when the amount of ink consumed in the compared sub-tank is less than the remaining amount of ink. Displays the ink end status when the ink consumption is greater than the remaining ink. Ink supply from the main tank to the sub tank can be surely performed.

此处最好甚至在实现墨水终止状态时执行一次供墨，使得可以尽可能多地消耗主箱中的墨水，即使主箱中的剩余墨量存在不均匀性。Here it is preferable to perform an ink supply even when the ink end state is achieved so that the ink in the main tank can be consumed as much as possible even if there is unevenness in the amount of remaining ink in the main tank.

另外，最好一直执行供墨，直到甚至当显示墨水终止状态时在探测器中也不出现任何变化为止。可以消除耗墨量不均匀性的影响。In addition, it is preferable to carry out the ink supply until no change occurs in the detector even when the ink end state is displayed. The influence of unevenness in ink consumption can be eliminated.

最好系统控制器连续比较每个次箱中的耗墨量及主箱中的耗墨量。当比较的次箱中的耗墨量少于剩余墨量时系统控制器给比较的次箱供墨。当比较的次箱的耗墨量大于剩余墨量时，系统控制器不给比较的次箱供墨。当至少有一个补给供墨的次箱时出现墨水终止状态，使得可以减少无益的墨量。Preferably the system controller continuously compares the ink consumption in each secondary tank with the ink consumption in the main tank. The system controller supplies ink to the compared sub-tank when the amount of ink consumed in the compared sub-tank is less than the remaining amount of ink. When the ink consumption of the compared sub-tank is greater than the remaining ink amount, the system controller does not supply ink to the compared sub-tank. The ink end condition occurs when there is at least one sub-tank replenished with ink supply, so that useless ink volume can be reduced.

最好主箱配置有一个探测主箱中剩余墨量的第一探测器。当第一探测器探测到剩余墨量达到预定水平或更少时显示墨水终止状态。Preferably, the main tank is provided with a first detector for detecting the amount of ink remaining in the main tank. The ink end status is displayed when the first detector detects that the remaining ink amount reaches a predetermined level or less.

此处最好每个次箱配置一个探测其中的墨量的第二探测器。当第二探测器探测到显示墨水终止状态时次箱几乎满着时，系统控制器停止供墨。系统结构可以简化。Here, preferably, each sub-tank is provided with a second detector for detecting the amount of ink therein. When the second detector detects that the sub-tank is almost full when the ink end condition is detected, the system controller stops the ink supply. The system structure can be simplified.

最好供墨系统还包括一个用于在主箱中储存剩余墨量的存储器，使得既使主箱被更换，也可以以较高的精确度管理主箱。Preferably, the ink supply system further includes a memory for storing a remaining amount of ink in the main tank, so that the main tank can be managed with high accuracy even if the main tank is replaced.

根据本发明，还提供一种管理从主箱提供给设置在上述墨水系统中的次箱的墨量的方法。According to the present invention, there is also provided a method of managing the amount of ink supplied from the main tank to the sub tanks provided in the ink system described above.

根据本发明，还提供一种供墨系统，包括：According to the present invention, there is also provided an ink supply system, comprising:

至少一个主箱，墨水储存其中；at least one master tank in which ink is stored;

多个记录头，与每个主箱连通，同时提供之间的记录头之差；和a plurality of recording heads in communication with each main tank while providing the difference between the recording heads; and

一个系统控制器，监视每个记录头中的耗墨量，从而管理主箱中的剩余墨量。A system controller that monitors the amount of ink consumed in each recording head, thereby managing the amount of ink remaining in the main tank.

通过只监视每个记录头中的耗墨量，可以防止主箱中墨水的缺乏。另外，只要墨水剩余在主箱中，就总是执行对每个记录头的供墨。因此，通过简单的控制系统就可以执行高质量的记录。By monitoring only the amount of ink consumed in each recording head, the lack of ink in the main tank can be prevented. In addition, ink supply to each recording head is always performed as long as ink remains in the main tank. Therefore, high-quality recording can be performed with a simple control system.

最好供墨系统还包括一个用于在主箱中储存剩余墨量的存储器，使得既使主箱被更换，也可以以较高的精确度管理主箱。Preferably, the ink supply system further includes a memory for storing a remaining amount of ink in the main tank, so that the main tank can be managed with high accuracy even if the main tank is replaced.

根据本发明，还提供一种管理从主箱提供给设置在上述墨水系统中的次箱的墨量的方法。According to the present invention, there is also provided a method of managing the amount of ink supplied from the main tank to the sub tanks provided in the ink system described above.

附图说明Description of drawings

通过下面参考附图对优选实施例的详细描述，本发明的上述目的和优点将变得更加清晰，其中：The above objects and advantages of the present invention will become clearer through the following detailed description of preferred embodiments with reference to the accompanying drawings, wherein:

图1是表示根据本发明第一实施例的喷墨记录装置的外部构成的前视图；1 is a front view showing the external configuration of an inkjet recording apparatus according to a first embodiment of the present invention;

图2是表示根据本发明第一实施例的喷墨记录装置的结构简图；2 is a schematic diagram showing the structure of an ink jet recording apparatus according to a first embodiment of the present invention;

图3是图2中喷墨记录装置内主箱的墨包的详细结构透视图；Fig. 3 is a perspective view showing the detailed structure of an ink pack of a main tank in the inkjet recording apparatus of Fig. 2;

图4A是图2中喷墨记录装置内次箱的详细结构平面图；4A is a plan view showing the detailed structure of a sub-box in the inkjet recording apparatus in FIG. 2;

图4B是沿图4A中B-B线的截面图；Fig. 4B is a sectional view along the line B-B in Fig. 4A;

图5是次箱墨包的详细结构透视图；Figure 5 is a perspective view of the detailed structure of the secondary case ink bag;

图6A是粘结剂防护器的近侧视图；Figure 6A is a close-up view of an adhesive guard;

图6B是粘结剂防护器的平面顶视图；Figure 6B is a top plan view of the adhesive protector;

图6C是粘结剂防护器的粘结剂防护器的远侧视图；Figure 6C is a distal view of the adhesive guard of the adhesive guard;

图6D是粘结剂防护器的平面底视图；Figure 6D is a bottom plan view of the adhesive guard;

图6E是沿图6B中E-E线的截面图；Figure 6E is a cross-sectional view along line E-E in Figure 6B;

图6F是沿图6B中F-F线的截面图；Figure 6F is a cross-sectional view along line F-F in Figure 6B;

图7A是次箱中粘结剂防护器的外部轮廓状态侧视图；Figure 7A is a side view of the outer profile state of the adhesive protector in the sub-box;

图7B是次箱中粘结剂防护器的外部轮廓状态平面图；Fig. 7B is a plan view of the outer contour state of the adhesive protector in the sub-box;

图8A和8B是表示次箱墨量探测器操作的截面图；8A and 8B are sectional views showing the operation of the sub-tank ink level sensor;

图9A是次箱修改例的侧视图；Figure 9A is a side view of a modified example of the sub-box;

图9B是次箱修改例的平面图；Fig. 9B is a plan view of a modified example of the sub-box;

图9C是沿图9B中C-C线的放大截面图；Figure 9C is an enlarged cross-sectional view along line C-C in Figure 9B;

图10是喷墨记录装置中进行的墨水补偿操作的流程图；Fig. 10 is a flowchart of an ink compensation operation performed in the inkjet recording apparatus;

图11是喷墨记录装置中进行的另一个墨水补偿操作的流程图；Fig. 11 is a flowchart of another ink compensation operation performed in the inkjet recording apparatus;

图12是根据本发明第二实施例的喷墨记录装置的结构简图；12 is a schematic structural view of an inkjet recording apparatus according to a second embodiment of the present invention;

图13是图12中喷墨记录装置记录部分的详细结构图；Fig. 13 is a detailed structural view of the recording portion of the inkjet recording device in Fig. 12;

图14是在图13中的记录部分进行的初始墨水填充操作的流程图；Fig. 14 is a flowchart of an initial ink filling operation performed at the recording section in Fig. 13;

图15～18是表示初始墨水填充操作中的详细操作的第一流程图；15 to 18 are first flowcharts showing detailed operations in the initial ink filling operation;

图19是根据本发明第三实施例的喷墨记录装置记录部分的详细结构图；19 is a detailed structural diagram of a recording portion of an inkjet recording apparatus according to a third embodiment of the present invention;

图20是根据本发明第四实施例的喷墨记录装置中供墨系统的结构简图；20 is a schematic structural view of an ink supply system in an inkjet recording apparatus according to a fourth embodiment of the present invention;

图21是根据本发明第五实施例的喷墨记录装置中供墨系统的结构简图；21 is a schematic structural view of an ink supply system in an inkjet recording apparatus according to a fifth embodiment of the present invention;

图22是根据本发明第六实施例的喷墨记录装置中供墨系统的结构简图；和22 is a schematic structural view of an ink supply system in an inkjet recording apparatus according to a sixth embodiment of the present invention; and

图23是根据本发明第七实施例的喷墨记录装置中供墨系统的结构简图。Fig. 23 is a schematic configuration diagram of an ink supply system in an ink jet recording apparatus according to a seventh embodiment of the present invention.

具体实施方式Detailed ways

下面将参考附图详细描述本发明的优选实施例。Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

在图1所示的打印机1中是一个根据本发明第一实施例的喷墨记录装置，形成的框架2限定一个具有一定宽度的窗口3，打印纸可以从中穿过。安装在车架4上的记录头5布置在窗口3的上部，车架4在主扫描方向往复运动，用于支撑打印纸的纸张导向器6布置在窗口3的下部。在框架2的右侧，布置一个用于操纵包含在打印机中的控制单元的操作板7，并且在框架2的左侧布置一个墨箱容器9，该容器9被一个可以打开和关闭的盖子8遮盖。墨箱可拆卸地容纳其中。In a printer 1 shown in FIG. 1, which is an ink jet recording apparatus according to a first embodiment of the present invention, aframe 2 is formed to define a window 3 having a certain width through which printing paper can pass. Arecording head 5 mounted on a carriage 4 is arranged above the window 3 , the carriage 4 reciprocates in the main scanning direction, and apaper guide 6 for supporting printing paper is arranged under the window 3 . On the right side of theframe 2, anoperating panel 7 for manipulating the control unit contained in the printer is arranged, and on the left side of theframe 2 anink tank container 9 is arranged, which is covered by acover 8 that can be opened and closed cover up. An ink tank is detachably housed therein.

通常，打印机1中的记录头5由一个发射黑墨的黑墨记录头和一个发射多种颜色如黄色、青色和品红每种墨水的彩色墨水记录头组成，以致于可以打印全色图象。每种颜色的记录头通过一根管线连接到对应颜色的次箱。在此结构下，预定量的打印纸断续地馈送到次扫描方向的同时，车架4在主扫描方向移动，并且从次箱供给到记录头5的墨水发射到打印纸上成为墨滴，由此进行打印。Generally, therecording head 5 in the printer 1 is composed of a black ink recording head emitting black ink and a color ink recording head emitting a plurality of colors such as yellow, cyan and magenta each ink, so that a full-color image can be printed. . The recording head of each color is connected to the sub-box of the corresponding color by a line. Under this structure, while a predetermined amount of printing paper is intermittently fed in the sub-scanning direction, the carriage 4 moves in the main scanning direction, and the ink supplied from the sub-tank to therecording head 5 is emitted onto the printing paper as ink droplets, Print from here.

如图2所示，根据本实施例的喷墨记录系统100包括多个打印机1，单个主箱10，一个气泵12，一个蓄电池13、一个排气装置19和一个系统控制器14。多个打印机1以高度差H垂直分布。As shown in FIG. 2 , aninkjet recording system 100 according to the present embodiment includes a plurality of printers 1 , a singlemain box 10 , anair pump 12 , a storage battery 13 , an exhaust device 19 and a system controller 14 . A plurality of printers 1 are vertically distributed with a height difference H.

主箱10被分成一个气腔10a和一个墨包10b。墨包10b通过一根管线15连接到为每个打印机1设置的次箱20，并且将储存其中的墨水供给每个打印机1的次箱20。次箱20经一个阻尼器5d通过管线20a连接到记录头5，使得储存其中的墨水供给记录头5。Themain tank 10 is divided into anair chamber 10a and anink pack 10b. Theink pack 10b is connected to the sub-tank 20 provided for each printer 1 through aline 15, and the ink stored therein is supplied to the sub-tank 20 of each printer 1. The sub-tank 20 is connected to therecording head 5 through a line 20a via a damper 5d so that the ink stored therein is supplied to therecording head 5.

气泵12通过一个管线16经蓄电池13和排气装置19连接到主箱10的气腔10a，使得进入的空气提供给主箱10的气腔10a。蓄电池13稳定气泵12中的压强涨落。但是，要操作喷墨记录系统100，蓄电池13并不是必需的。排气装置19把管线16和气腔10a中的空气释放到大气中，由此取消气泵12产生的受压状态。Theair pump 12 is connected to theair chamber 10a of themain tank 10 through a line 16 via the battery 13 and the exhaust device 19 so that the incoming air is supplied to theair chamber 10a of themain tank 10 . The battery 13 stabilizes pressure fluctuations in theair pump 12 . However, to operate theinkjet recording system 100, the storage battery 13 is not necessary. The exhaust device 19 releases the air in the line 16 and theair chamber 10a to the atmosphere, thereby canceling the pressurized state generated by theair pump 12.

对主箱10附近的管线15设置一个电磁阀17(以下称作主阀)，并且对每个次箱20附近的管线15设置一个电磁阀18(以下称作次阀)。系统控制器14电连结到每个打印机1的控制器1a、主箱10、气泵12、主阀17和排气装置19，从而执行对每个打印机1、气泵12和排气装置19的驱动，检查主箱10中的剩余墨量，并打开/闭合主阀17。另外，每个打印机1的控制器1a电连结到次阀18和次箱20，打开/闭合次阀18并检查次主箱20中的剩余墨量。One solenoid valve 17 (hereinafter referred to as a main valve) is provided for theline 15 near themain tank 10, and one solenoid valve 18 (hereinafter referred to as a sub valve) is provided for each of thelines 15 near thesub tank 20. The system controller 14 is electrically connected to the controller 1a, themain tank 10, theair pump 12, the main valve 17, and the exhaust device 19 of each printer 1, thereby performing the driving of each printer 1, theair pump 12, and the exhaust device 19, The remaining amount of ink in themain tank 10 is checked, and the main valve 17 is opened/closed. In addition, the controller 1 a of each printer 1 is electrically connected to the sub-valve 18 and the sub-tank 20 , opens/closes the sub-valve 18 and checks the amount of remaining ink in thesub-main tank 20 .

为了方便起见，在图2中没有示出主箱10、管线15、16和次箱20中的每种颜色的墨水。事实上，主箱10和次箱20中配备有每种颜色，并且通过用于每种颜色的管线15、16彼此连结。For convenience, each color of ink in themain tank 10, thelines 15, 16, and the sub-tank 20 is not shown in FIG. 2 . In fact, themain tank 10 and thesecondary tank 20 are equipped with each color and are connected to each other bylines 15 , 16 for each color.

如上所述，因为墨水从一个主箱10供给到多个次箱20，所以即使设置多个打印机1，也只通过交换一个主箱来完成维护工作，以致于可以改进工作性能。主箱10和次箱20之间管线15中的动压不对记录头5的操作产生影响，以致于可以维持打印质量。虽然以高度差H布置多个打印机1，但每个打印机1中的次箱20布置成次箱20和记录头5之间的头高度差维持恒定。As described above, since ink is supplied from onemain tank 10 to a plurality ofsub tanks 20, even if a plurality of printers 1 are provided, maintenance work is performed by exchanging only one main tank, so that workability can be improved. The dynamic pressure in theline 15 between themain tank 10 and thesub tank 20 has no influence on the operation of therecording head 5, so that the printing quality can be maintained. Although a plurality of printers 1 are arranged with a height difference H, the sub-tank 20 in each printer 1 is arranged such that the head height difference between the sub-tank 20 and therecording head 5 is maintained constant.

另外，可以在记录系统100中设置多个主箱。在这种情况下，当其中的剩余墨量较少时，工作箱可以迅速地切换到另一个主箱。因此，在使用切换的主箱的同时，可以用新的充满墨水的主箱更换原来的主箱10。In addition, a plurality of master boxes may be provided in therecording system 100 . In this case, when the remaining amount of ink therein is low, the job tank can be quickly switched to another main tank. Therefore, while using the switched main tank, the originalmain tank 10 can be replaced with a new ink-filled main tank.

另外，可以对次箱20设置多个记录头。但是，在此情况下，每个记录头的喷嘴数以及单位时间内的喷墨量应该考虑为，当操作多个记录头时管线20a中产生的动压处于预定的水平之下，同时还考虑垂直方向次箱20的记录头轮廓而限定的静压。如果满足上述条件，则通过多个记录头可以提高设计自由度。In addition, a plurality of recording heads may be provided for thesub tank 20 . However, in this case, the number of nozzles per recording head and the ejection amount per unit time should be considered so that the dynamic pressure generated in the line 20a is below a predetermined level when operating a plurality of recording heads, while also considering Static pressure defined by the profile of the recording head in the sub-box 20 in the perpendicular direction. If the above conditions are satisfied, the degree of freedom in design can be increased by a plurality of recording heads.

如图3所示，墨包10b是一个由挠性材料制成的气密包，具有的大小可以根据存储其中的墨量体积而变化，例如大约1000cc。在其一个短边上设置一个连结到管线15的连结部分10c。在另一短边上设置的中心部分避免过度膨胀。在长边上设置一个三角形地带10d，可以肯定地增大可扩展的容积。As shown in FIG. 3, theink pack 10b is an airtight pack made of flexible material, and has a size that can vary according to the volume of ink stored therein, for example, about 1000 cc. On one short side thereof, a connectingportion 10c connected to thepipeline 15 is provided. A center portion provided on the other short side avoids excessive expansion. Providing atriangular zone 10d on the long side can certainly increase the expandable volume.

作为主箱10的墨包10b的材料，例如可以采用铝叠置膜，以便确保气体阻挡特性，其中把铝箔作为一个中间层夹在两个薄膜如外侧上的尼龙膜和内侧上的聚乙烯膜之间。另外，还可以使用一个半透明膜，其中氧化硅蒸发到聚酯膜如聚酯或尼龙的表面上，由此形成一个氧化硅层，并且在这些表面上叠置具有良好的热焊接特性的聚酯膜，如聚乙烯。As the material of theink pack 10b of themain tank 10, for example, an aluminum laminated film in which an aluminum foil is sandwiched as an intermediate layer between two films such as a nylon film on the outside and a polyethylene film on the inside can be used in order to ensure gas barrier properties. between. In addition, it is also possible to use a translucent film in which silicon oxide is evaporated onto the surface of a polyester film such as polyester or nylon, thereby forming a layer of silicon oxide, and to laminate a polyester film having good thermal welding characteristics on these surfaces. Ester films such as polyethylene.

如图4A和4B所示，次箱20包括一个墨水储存其中的墨包21，一个用于避免墨包21的内表面相互粘结的粘结剂防护器22，一个用于探测墨包21中墨量的墨量探测器23和一个墨包21固定其上的固定板24。As shown in Figures 4A and 4B, the sub-tank 20 includes anink bag 21 in which ink is stored, anadhesive protector 22 for preventing the inner surfaces of theink bag 21 from sticking to each other, and anadhesive protector 22 for detecting the inner surface of theink bag 21. Anink level detector 23 of ink level and a fixingplate 24 on which anink bag 21 is fixed.

在墨包21的一个表面上，粘结墨量探测器23；在墨包21的另一个表面上粘结固定板24。墨量探测器23包括一个粘结到墨包21一个表面上的片状粘结部分23a，一个与此粘结部分23a的下部形成一体、从而从粘结部分23a的表面垂直延伸的片状探测器部分23b。On one surface of theink pack 21, anink level sensor 23 is bonded; on the other surface of theink pack 21, a fixingplate 24 is bonded. Theink level sensor 23 includes a sheet-likeadhesive portion 23a bonded to one surface of theink pack 21, and a sheet-like sensor unit integrally formed with a lower portion of theadhesive portion 23a so as to extend perpendicularly from the surface of theadhesive portion 23a.device part 23b.

如图5所示，墨包21是一个由挠性材料制成的气密包，具有的大小可以根据储存的墨量体积而变化，如5～300cc。在其反面上设置一个连结到管线15的入口21和一个连结到管线20a的出口。As shown in FIG. 5 , theink bag 21 is an airtight bag made of flexible material, and its size can vary according to the stored ink volume, such as 5-300 cc. On its reverse side there are provided aninlet 21 connected toline 15 and an outlet connected to line 20a.

作为次箱20的墨包21的组成材料，例如可以采用铝叠置膜，以便确保气体阻挡特性，其中把铝箔作为一个中间层夹在两个薄膜如外侧上的尼龙膜和内侧上的聚乙烯膜之间。另外，还可以使用一个半透明膜，其中氧化硅蒸发到聚酯膜如聚酯或尼龙的表面上，由此形成一个氧化硅层，并且在这些表面上叠置具有良好的热焊接特性的聚酯膜，如聚乙烯。As a constituent material of theink pack 21 of the sub-box 20, for example, an aluminum laminated film, in which an aluminum foil is sandwiched as an intermediate layer between two films such as a nylon film on the outside and polyethylene on the inside, can be used to ensure gas barrier properties. between membranes. In addition, it is also possible to use a translucent film in which silicon oxide is evaporated onto the surface of a polyester film such as polyester or nylon, thereby forming a layer of silicon oxide, and to laminate a polyester film having good thermal welding characteristics on these surfaces. Ester films such as polyethylene.

因为次箱20的墨包21具有挠性，所以既使强迫之下从主箱10向次箱20的供墨，墨水也不会从记录头5泄漏，并且也不会损坏记录头喷嘴的弯月面。另外，因为墨水不暴露给大气，所以不会被氧化，使之消除了从主箱10到次箱20的内径中的流体阻力和墨流通路的长度。因此，在保持墨水的排气状态时可执行印刷。而且，通过在该墨包的厚度上的改变可检测残余的墨量。Because theink pack 21 of the sub-tank 20 has flexibility, even if the ink supply from themain tank 10 to the sub-tank 20 is forced, the ink will not leak from therecording head 5, and the bend of the nozzle of the recording head will not be damaged. lunar surface. In addition, because the ink is not exposed to the atmosphere, it is not oxidized, making it possible to eliminate the fluid resistance and the length of the ink flow path in the inner diameter from themain tank 10 to thesub tank 20 . Therefore, printing can be performed while maintaining the exhausted state of ink. Also, the amount of remaining ink can be detected by a change in the thickness of the ink pack.

此处，次箱20的墨包21可以由一种硬质材料形成。在此情况下，可以用一种诸如可以探测次箱20的墨包21中液面的探测器的元件探测剩余墨量。Here, theink pack 21 of thesub tank 20 may be formed of a hard material. In this case, an element such as a sensor capable of detecting the liquid level in theink pack 21 of thesub tank 20 may be used to detect the remaining ink amount.

此外，当执行从主箱10向次箱20最初填充墨水时，即使墨包21被抽空一次，也可以通过粘结剂防护器22避免墨包21的内表面相互粘结。因此，可以平稳地执行最初的墨水填充。另外，即使设置多种颜色的次箱20，也可以避免不同颜色的墨水从记录头5倒流，这种情况在他们中的一个墨包21闭合时产生。In addition, when the initial filling of ink from themain tank 10 to thesub tank 20 is performed, even if theink pack 21 is evacuated once, the inner surfaces of the ink packs 21 can be prevented from sticking to each other by theadhesive protector 22 . Therefore, initial ink filling can be performed smoothly. In addition, even ifsub-tanks 20 of a plurality of colors are provided, it is possible to prevent inks of different colors from flowing backward from therecording head 5, which occurs when one of the ink packs 21 of them is closed.

如图7B所示，粘结剂防护器22是一个略轻于墨包21内部形状的矩形塑料片。如图6B所示，在粘结剂防护器22的一个表面上，形成具有矩形截面的格栅状凹槽；并且在粘结剂防护器22的另一个表面上，如图6D所示，横向形成具有类似的矩形截面的凹槽22a。As shown in FIG. 7B , theadhesive protector 22 is a rectangular plastic sheet slightly lighter than the inner shape of theink pack 21 . As shown in FIG. 6B, on one surface of theadhesive protector 22, a grid-like groove having a rectangular cross section is formed; and on the other surface of theadhesive protector 22, as shown in FIG. Agroove 22a having a similar rectangular cross section is formed.

如图7A和7B所示，粘结剂防护器22以自由状态安放在墨包21中。因为当通过填充或消耗墨水时墨包21的内表面不与粘结剂防护器22冲突，所以可以避免墨量探测器23的误差操作。另外，因为从主箱10供给的墨水沿凹槽22a流到墨包21中，所以最初可以用墨水平稳地填充墨包21。As shown in FIGS. 7A and 7B, theadhesive protector 22 is housed in theink pack 21 in a free state. Since the inner surface of theink pack 21 does not collide with theadhesive protector 22 when ink is filled or consumed, erroneous operation of theink level sensor 23 can be avoided. In addition, since the ink supplied from themain tank 10 flows into theink pack 21 along thegroove 22a, theink pack 21 can be smoothly filled with ink initially.

如图8A和8B，开关25a和25b分布在墨量探测器23探测部分的两侧，即，分布在墨包21根据其中储存的墨量扩张或收缩的方向的两侧上。当墨包21收缩时，开关25a通过在箭头方向移动的探测器部分23b激励，以致于墨包21基本上变空(少墨状态)，例如剩余的墨量为10g或更少。8A and 8B, theswitches 25a and 25b are distributed on both sides of the detecting portion of theink amount detector 23, that is, on both sides of the direction in which theink pack 21 expands or contracts according to the amount of ink stored therein. When theink pack 21 is contracted, theswitch 25a is actuated by thedetector portion 23b moving in the direction of the arrow, so that theink pack 21 becomes substantially empty (low ink state), eg, 10g or less of remaining ink.

另一方面，当墨包21扩张时，开关25b通过探测器部分23b在箭头b方向移动而被激励，使得探测墨包21基本上变满(墨满状态)，例如，墨量为20g或更多。两个开关25a和25b不被激励、即墨包21中的墨量处于墨少状态和墨满状态之间的状态是原始状态。On the other hand, when theink bag 21 expands, theswitch 25b is activated by the movement of thedetector portion 23b in the arrow b direction, so that thedetection ink bag 21 becomes substantially full (ink full state), for example, the amount of ink is 20g or more many. The state in which the twoswitches 25a and 25b are not activated, that is, the amount of ink in theink pack 21 is between the low ink state and the full ink state, is the original state.

图9A和9B中所示的作为修改例的墨包21’没有配置矩形板状粘结剂防护器22，但配置有一个粘结剂防护器22’，该防护器通过压模在粘结有墨量探测器23的墨包21的一个表面上而形成为一个半圆形截面的凸状。因为粘结剂防护器22’通过墨包21一个表面的由此变形而形成，所以不需要制备一个与墨包21分离的元件的矩形粘结剂防护器22。另外，因为粘结剂防护器22’可以与墨包21’同时形成，所以次箱20的成本可以降低。The ink pack 21' as a modified example shown in FIGS. 9A and 9B is not provided with a rectangular plate-shapedadhesive protector 22, but is provided with an adhesive protector 22' bonded with One surface of theink pack 21 of theink level sensor 23 is formed in a convex shape with a semicircular cross section. Since the adhesive protector 22' is formed by thus deforming one surface of theink pack 21, there is no need to prepare the rectangularadhesive protector 22 as a separate component from theink pack 21. In addition, since the adhesive protector 22' can be formed simultaneously with the ink pack 21', the cost of the sub-tank 20 can be reduced.

如上所述，图4B中所示的矩形板状粘结剂防护器22以自由状态安放在墨包21中，并且形成如图9C所示的具有半圆形和凸形部分的粘结剂防护器22’，从而避免墨量探测器23粘结部分23a的表面与墨包21’的一个表面粘结。因此，粘结剂防护器22和22’中的每个不干扰墨量探测器23的探测部分23b。因此，因为墨包22和22’中的墨量总是可以精确地探测，所以可以避免由于供墨缺少所致的打印质量低下。As described above, the rectangular plate-shapedadhesive protector 22 shown in FIG. 4B is housed in theink pack 21 in a free state, and forms an adhesive protector having semicircular and convex portions as shown in FIG. 9C. 22', thereby preventing the surface of theadhesive portion 23a of theink level sensor 23 from adhering to one surface of the ink pack 21'. Therefore, each of theadhesive protectors 22 and 22' does not interfere with thedetection portion 23b of theink amount sensor 23. Therefore, since the amount of ink in the ink packs 22 and 22' can always be accurately detected, poor printing quality due to lack of ink supply can be avoided.

下面将参见图10描述的由此构成的记录系统100中执行的墨水补充操作。在接收到主机(未示出)发出的打印命令时，系统控制器14向每个打印机1的控制器发出命令，使得每个打印机1的控制器1a根据接收到的打印命令开始打印处理。首先检查次箱20中的剩余墨量(步骤S1)。The ink replenishment operation performed in the thus constitutedrecording system 100 will be described below with reference to FIG. 10 . Upon receiving a print command from a host (not shown), the system controller 14 issues a command to the controller of each printer 1 so that the controller 1a of each printer 1 starts printing processing according to the received print command. First, the remaining amount of ink in thesub tank 20 is checked (step S1).

当一个打印机1中的控制器1a探测到次箱20中的剩余墨量很少时，就通知系统控制器14。然后，系统控制器14驱动气泵12(步骤S2)，打开主阀17(步骤S3)，并通过打印机1的控制器1a打开次阀18(步骤S4)。When the controller 1a in a printer 1 detects that the amount of remaining ink in thesub tank 20 is small, it notifies the system controller 14. Then, the system controller 14 drives the air pump 12 (step S2), opens the main valve 17 (step S3), and opens the sub-valve 18 through the controller 1a of the printer 1 (step S4).

气泵12给主箱10的气腔10a供给空气，由此对主箱10的墨包10b中的墨水施压，并把墨水提供给打印机1的次箱20，由此补充次箱20的墨水(步骤5)。因此，因为可以避免次箱20中的墨水短缺，所以可以给消耗大量墨水的多个打印机1充分地供给墨水。Theair pump 12 supplies air to theair chamber 10a of themain tank 10, thereby pressurizing the ink in theink pack 10b of themain tank 10, and supplies the ink to thesub tank 20 of the printer 1, thereby replenishing the ink in the sub tank 20 ( Step 5). Therefore, since a shortage of ink in thesub tank 20 can be avoided, ink can be sufficiently supplied to a plurality of printers 1 that consume a large amount of ink.

之后，当打印机1的控制器1a探测到次箱20中的墨水补充结束时(步骤6)，通知系统控制器14。然后，系统控制器14通过打印机1的控制器1a关闭次阀18(步骤S7)，停止气泵12的驱动(步骤S8)，激励排气装置19，从而把管线16和气腔10a的内部向大气打开，使得取消由气泵12产生的受压状态(S9)。最后，关闭主阀17(步骤S10)。Thereafter, when the controller 1a of the printer 1 detects that the ink replenishment in thesub tank 20 is completed (step 6), it notifies the system controller 14. Then, the system controller 14 closes the secondary valve 18 through the controller 1a of the printer 1 (step S7), stops the driving of the air pump 12 (step S8), and activates the exhaust device 19, thereby opening the inside of the pipeline 16 and theair chamber 10a to the atmosphere , so that the pressurized state generated by theair pump 12 is canceled (S9). Finally, the main valve 17 is closed (step S10).

因为当不需要供墨时受压状态可以通过排气装置19取消，所以可以消除由于保持受压装置而导致的装置损坏，可靠性提高。而且，即使出现施压控制误差或供墨误差，也可以确保安全性。记录系统100被激励。当系统控制器14探测到主箱10的墨包10b中剩余墨量较少时，通过显示器等通知主机。由此，用户用一个新的墨包替换受验的墨包10b。Since the pressurized state can be canceled by the exhaust device 19 when ink supply is not required, damage to the device due to maintaining the pressurized device can be eliminated, and reliability is improved. Also, safety can be ensured even if a pressure application control error or an ink supply error occurs. Therecording system 100 is activated. When the system controller 14 detects that the amount of remaining ink in theink pack 10b of themain tank 10 is low, it notifies the host through a display or the like. Thus, the user replaces theink pack 10b under test with a new one.

因此，因为用户只管理一个主箱10的墨包10b中的墨水，所以进行墨水的剩余量检查。另外，因为可以通过主箱10侧的主阀17关闭从主箱10到次箱20的管线15，所以甚至在打印操作期间，也可以更换主箱10的墨包10b，不会导致管线15中的空气侵入或墨水泄漏。Therefore, since the user manages the ink in only oneink pack 10b of themain tank 10, the remaining amount of ink is checked. In addition, since theline 15 from themain tank 10 to the sub-tank 20 can be closed by the main valve 17 on the side of themain tank 10, theink pack 10b of themain tank 10 can be replaced even during the printing operation without causing damage to theline 15. air intrusion or ink leakage.

因为墨水通过气泵12被迫提供给每个次箱20，并且次箱20和记录头5以及管线20a之间的高差设置成可以稳定地进行从次箱20到记录头5的供墨，所以既使主箱布置在任何位置都可以在水平方向、垂直方向或三维方向上(他们的总合)布置打印机1。在打印机1布置在垂直方向的情况下，可以减少多个打印机1的外形空间。换言之，单位面积的打印机数可以增加。Because the ink is forced to be supplied to each sub-tank 20 by theair pump 12, and the height difference between the sub-tank 20 and therecording head 5 and the pipeline 20a is set so that the ink supply from the sub-tank 20 to therecording head 5 can be stably performed, so Even if the main box is arranged at any position, the printer 1 can be arranged in the horizontal direction, the vertical direction, or the three-dimensional direction (the total of them). In the case where the printers 1 are arranged in the vertical direction, the outer space of a plurality of printers 1 can be reduced. In other words, the number of printers per unit area can be increased.

或者，可以采用图11中所示的另一种墨水补充操作。例如从主机(未示出)接收到打印命令时(步骤11)，系统控制器14给打印机1的控制器发出打印命令，在该打印机中从主箱10向打印机1的供墨时间最短，即连结主箱10和打印机1的管线15的长度最短(以下称作第一优先权打印机)(步骤S12)。然后，第一优先权打印机1的控制器1a根据接收到的打印命令开始打印操作，并检查次箱20中的剩余墨量(步骤S13)。Alternatively, another ink replenishment operation shown in Fig. 11 may be employed. For example, when receiving a print command from a host computer (not shown) (step 11), the system controller 14 sends a print command to the controller of the printer 1 in which the ink supply time from themain box 10 to the printer 1 is the shortest, that is, The length of thepipeline 15 connecting themain box 10 and the printer 1 is the shortest (hereinafter referred to as the first priority printer) (step S12). Then, the controller 1a of the first priority printer 1 starts a printing operation according to the received printing command, and checks the remaining amount of ink in the sub tank 20 (step S13).

另外，系统控制器14从主机接收到打印命令时向打印机1的控制器1a发出打印命令，在该打印机中连结主箱10和打印机1的管线长度最短(以下成第二优先权打印机)(步骤S12)。然后，第二优先权打印机1的控制器1a根据接收到的打印命令开始打印操作，并检查次箱20中的剩余墨量(步骤S13)。之后类似地控制第三优先权打印机、第四优先权打印机…(步骤S11至S14)。In addition, when the system controller 14 receives a print command from the host computer, it sends a print command to the controller 1a of the printer 1 in which the length of the pipeline connecting themain box 10 and the printer 1 is the shortest (hereinafter referred to as the second priority printer) (step S12). Then, the controller 1a of the second priority printer 1 starts a printing operation according to the received printing command, and checks the remaining amount of ink in the sub tank 20 (step S13). Thereafter, the third priority printer, the fourth priority printer, . . . are similarly controlled (steps S11 to S14).

因为按照供墨时间的优先权(管线15的长度)一次控制打印机1，所以在打印量增大的情况下，可以把打印量较大的打印分配给打印机1，该打印机的供墨完成迅速(即为较高优先权的打印机)。由此可以减少总的供墨时间。Because the printer 1 is controlled once according to the priority of the ink supply time (the length of the pipeline 15), so when the printing volume increases, the printing with a larger printing volume can be assigned to the printer 1, and the ink supply of this printer is completed quickly ( the higher priority printer). Thus, the total ink supply time can be reduced.

检查最优选控制的第一优先权打印机1的控制器1a释放在次箱20中的剩余墨量变得较少时，即释放次箱20处于少墨状态时(步骤S15)。当探测到少墨状态时，通知系统控制器14(步骤S16)。然后，系统控制器14驱动气泵12，打开主阀17(步骤S17)，并通过第一优先权打印机1的控制器1a进一步打开次阀18(步骤S18)。The controller 1a of the first priority printer 1 that checks the most preferable control discharges when the amount of remaining ink in the sub-tank 20 becomes small, that is, when the sub-tank 20 is in an ink-low state (step S15). When the low ink state is detected, the system controller 14 is notified (step S16). Then, the system controller 14 drives theair pump 12, opens the main valve 17 (step S17), and further opens the sub-valve 18 by the controller 1a of the first priority printer 1 (step S18).

气泵12将空气供给主箱10的气腔10a，由此对主箱10的墨包10b中的墨水施压，并把墨水供给第一优先权打印机1的次箱20，由此给次箱20补充墨水(步骤S19)。之后，当探测到次箱20中的墨水补充完成时(步骤S20)，第一优先权打印机1的控制器1a通知系统控制器14(步骤S21)。Theair pump 12 supplies air to theair chamber 10a of themain tank 10, thereby pressurizing the ink in theink bag 10b of themain tank 10, and supplies the ink to the sub-tank 20 of the first priority printer 1, thereby supplying the sub-tank 20 with ink. Ink is replenished (step S19). Thereafter, when it is detected that the ink replenishment in thesub tank 20 is completed (step S20), the controller 1a of the first priority printer 1 notifies the system controller 14 (step S21).

然后，系统控制器14通过上述打印机1的控制器1a关闭次阀18(步骤S22)，停止气泵12的驱动，激励排气装置19，把管线16和气腔10a的内部向大气打开，使得气泵12产生的受压状态被释放。最后，控制器1a关闭主阀17(步骤S23)。之后，将墨水类似地提供给第二优先权打印机、第三优先权打印机…(步骤S15至S23)。Then, the system controller 14 closes the secondary valve 18 through the controller 1a of the above-mentioned printer 1 (step S22), stops the driving of theair pump 12, activates the exhaust device 19, and opens the inside of the pipeline 16 and theair chamber 10a to the atmosphere, so that theair pump 12 The resulting stress is released. Finally, the controller 1a closes the main valve 17 (step S23). After that, ink is similarly supplied to the second priority printer, the third priority printer, . . . (steps S15 to S23).

重复上述操作的同时激励喷墨记录系统100。当系统控制器14探测到主箱10的墨包10b处于少墨状态时，通过显示器等通知主机。由此，用户用一个新的墨包替换受验的墨包10b。Theinkjet recording system 100 is activated while repeating the above operations. When the system controller 14 detects that theink pack 10b of themain tank 10 is in an ink-low state, it notifies the host through a display or the like. Thus, the user replaces theink pack 10b under test with a new one.

根据上述结构，还可以达到图10所述的同样优点。According to the above structure, the same advantages as described in FIG. 10 can also be achieved.

此处可以移去气泵12。在此结构中，主箱10布置在系统的顶部，每个打印机1以一定的高度差布置在主箱10以下。由于每个打印机1的主箱10和次箱20之间的高差，通过打开主阀17可以确保给次阀18被打开的次箱供墨。Theair pump 12 can be removed here. In this structure, themain box 10 is arranged on the top of the system, and each printer 1 is arranged below themain box 10 with a certain height difference. Due to the height difference between themain tank 10 and thesub tank 20 of each printer 1 , ink supply to the sub tank with the sub valve 18 opened can be ensured by opening the main valve 17 .

在根据本发明第二实施例的喷墨记录系统中，如图12所述，车架4的构成使得可以由一个车架驱动电极32通过定时皮带31往复运动。在此车架4上，可以安装喷射供墨系统40供给的黑色墨滴的记录头5a和喷射红、青绿和品红各种颜色墨滴的记录头5b。In the ink jet recording system according to the second embodiment of the present invention, as shown in FIG. 12, the carriage 4 is constituted so that anelectrode 32 can be reciprocated by acarriage driving electrode 32 via atiming belt 31. On this carriage 4, arecording head 5a ejecting ink droplets of black supplied from anink supply system 40 and arecording head 5b ejecting ink droplets of respective colors of red, cyan, and magenta can be mounted.

供墨系统40包括：储存各色墨水的主箱10B、10Y、10C和10M；暂时储存从主箱10B、10Y、10C和10M供给的各色墨水的次箱20B、20Y、20C和20M；分布在墨箱容器9中的用于安放主箱10B、10Y、10C和10M的压力腔41B、41Y、41C和41M。各个压力腔41B、41Y、41C和41M通过压力探测器51B、51Y、51C和51M和压力释放装置52B、52Y、52C和52M的电磁阀(以下称作释放阀)连结到压力泵53的出射口53a。Theink supply system 40 includes: main tanks 10B, 10Y, 10C, and 10M for storing inks of various colors; sub-tanks 20B, 20Y, 20C, and 20M for temporarily storing inks of various colors supplied from the main tanks 10B, 10Y, 10C, and 10M;Pressure chambers 41B, 41Y, 41C, and 41M in thetank container 9 for accommodating the main tanks 10B, 10Y, 10C, and 10M. Each of thepressure chambers 41B, 41Y, 41C, and 41M is connected to the discharge port of thepressure pump 53 through pressure detectors 51B, 51Y, 51C, and 51M and electromagnetic valves (hereinafter referred to as release valves) of pressure release devices 52B, 52Y, 52C, and 52M. 53a.

提供连结主箱10B、10Y、10C和10M和次箱20B、20Y、20C和20M的管线42B、42Y、42C和42M。电磁阀43B、43Y、43C和43M(以下简称阀)连结到管线42B、42Y、42C和42M；供墨管44B、44Y、44C和44M把次箱20B、20Y、20C和20M连结到记录头5a和5b。Lines 42B, 42Y, 42C, and 42M connecting the main tanks 10B, 10Y, 10C, and 10M and thesecondary tanks 20B, 20Y, 20C, and 20M are provided.Solenoid valves 43B, 43Y, 43C and 43M (hereinafter referred to as valves) are connected topipelines 42B, 42Y, 42C and 42M;ink supply pipes 44B, 44Y, 44C and 44M connect sub-tanks 20B, 20Y, 20C and 20M torecording head 5a and 5b.

在导片元件6右侧上的非打印区中，布置一个槽盖单元46，促使抽吸泵45向记录头5a和5b施加负压，避免在非打印时或记录头5a和5b的初始填墨时，由于记录头5a、5b中的干燥空气所导致的阻塞。In the non-printing area on the right side of theguide member 6, agroove cover unit 46 is arranged to cause thesuction pump 45 to apply negative pressure to the recording heads 5a and 5b, avoiding initial filling of the recording heads 5a and 5b during non-printing. clogging due to dry air in the recording heads 5a, 5b during ink removal.

具体如图13所述，在主箱10(10B、10Y、10C和10M)中，连结部分10a连结到管线42(42B、42Y、42C和42M)。在次箱20(20B、20Y、20C和20M)中，入口21a连结到管线42，出口21b连结到供墨管44(44B、44Y、44C和44M)。As specifically described in FIG. 13 , in the main tanks 10 ( 10B, 10Y, 10C, and 10M), the linkingportion 10 a is linked to the pipeline 42 ( 42B, 42Y, 42C, and 42M). In the sub-tanks 20 ( 20B, 20Y, 20C, and 20M), theinlet 21 a is connected to theline 42 , and theoutlet 21 b is connected to the ink supply pipe 44 ( 44B, 44Y, 44C, and 44M).

控制器50电连结到：探测施加的主箱10的压力的压力探测器51(51B、51Y、51C和51M)；释放阀52(52B、52Y、52C和52M)；压力泵53；阀43(43B、43Y、43C和43M)；通过次箱20配置的墨量探测器23的移位激励的开关25a、25b；和抽吸泵45和47。控制器50控制主箱10和次箱20中墨量的检查，驱动抽吸泵45、47和压力泵53，打开或闭合阀43和52。在图13中，为了方便起见，没有示出每种颜色墨水的主箱10、次箱20、压力腔41、管线42、阀43和供墨管44，而只对一种颜色的墨水示出。Thecontroller 50 is electrically connected to: pressure detectors 51 (51B, 51Y, 51C, and 51M) for detecting the pressure applied to themain tank 10; relief valves 52 (52B, 52Y, 52C, and 52M); pressure pumps 53; valves 43 ( 43B, 43Y, 43C, and 43M);switches 25a, 25b actuated by displacement of theink level sensor 23 disposed through the sub-tank 20; andsuction pumps 45 and 47. Thecontroller 50 controls the checking of the amount of ink in themain tank 10 and thesub tank 20 , drives the suction pumps 45 , 47 and thepressure pump 53 , and opens or closes thevalves 43 and 52 . In Fig. 13, for the sake of convenience, themain tank 10, thesecondary tank 20, thepressure chamber 41, thepipeline 42, thevalve 43 and theink supply pipe 44 of each color ink are not shown, but only the ink of one color is shown .

下面将参照图13～18的流程图描述记录系统中执行的初始填墨操作。在初始状态中，关闭所有颜色的阀门43。另外，在所有颜色的次箱20中已经进入了在组装过程中进入的空气和载体液体。首先，在接收到从主机(未示出)发出的初始填充命令时，控制器50排出每个次箱20中的空气和载体液体(图14中的步骤S101)。The initial ink filling operation performed in the recording system will be described below with reference to the flowcharts of FIGS. 13 to 18 . In the initial state, thevalves 43 of all colors are closed. In addition, air and carrier liquid that had entered during assembly had entered the sub-tanks 20 in all colors. First, upon receiving an initial filling command from a host (not shown), thecontroller 50 discharges air and carrier liquid in each sub-tank 20 (step S101 in FIG. 14 ).

即，把记录头5移到非打印区，从而用槽盖单元46密封记录头5。接下来，操作抽吸泵45，从而通过记录头5把槽盖单元46的负压施加给每个供墨管和每个次箱20，并把剩余在这些元件中的空气和载体液体排出到槽盖单元46。That is, therecording head 5 is moved to the non-printing area, thereby sealing therecording head 5 with theslot cover unit 46 . Next, thesuction pump 45 is operated so that the negative pressure of thetank cover unit 46 is applied to each ink supply tube and each sub-tank 20 through therecording head 5, and the air and carrier liquid remaining in these elements are discharged to theSlot cover unit 46.

把此时抽吸泵45的抽吸量不设置为一个固定值，而设置为一个根据每个次箱20中的墨量改变的值。即，控制单元判断每个次箱20中的墨量是否是10g或更少(图15中的步骤S111)，即判断墨量是否处于少墨状态。当墨量不处于少墨状态时，控制器50把抽吸泵45的抽吸量设置为一个较小的量，如1g，并驱动抽吸泵45，直到次箱20进入少墨状态(图15中的步骤S112)。此时，因为载体液体代替墨水进入每个次箱20中，所以控制器根据载体液体量进行判断。The suction amount of thesuction pump 45 at this time is not set to a fixed value but to a value that changes according to the amount of ink in eachsub tank 20 . That is, the control unit judges whether the amount of ink in each sub-tank 20 is 10 g or less (step S111 in FIG. 15 ), that is, judges whether the amount of ink is in a low ink state. When the amount of ink is not in the low ink state, thecontroller 50 sets the suction volume of thesuction pump 45 to a smaller amount, such as 1g, and drives thesuction pump 45 until the sub-tank 20 enters the low ink state (Fig. Step S112 in 15). At this time, since the carrier liquid enters into each sub-tank 20 instead of the ink, the controller makes a judgment based on the amount of the carrier liquid.

当每个次箱20中的载体液体量进入少墨状态时，控制器50把抽吸泵45的抽吸量设置为一个很大的量，如100g，并且驱动抽吸泵45，由此使得每个次箱20处于一个较高的负压状态。因此，每个次箱20通过大气压压缩，由此把空气和载体液体完全排出到槽盖装置46(图15中的步骤S113)。When the amount of carrier liquid in each sub-tank 20 enters a low-ink state, thecontroller 50 sets the suction volume of thesuction pump 45 to a large amount, such as 100 g, and drives thesuction pump 45, thereby making the Eachsecondary tank 20 is in a relatively high negative pressure state. Accordingly, each sub-tank 20 is compressed by atmospheric pressure, thereby completely discharging the air and carrier liquid to the tank cover unit 46 (step S113 in FIG. 15).

在抽吸泵45的抽吸量设置为一个较大的值时，抽吸量可以设置为一个固定值。另外，在由于某些麻烦而过度重复程序的情况下，可以先设置步骤S111和S112之间程序数目的阈值。当程序数目超过阈值时，操作进行到步骤S113。When the suction amount of thesuction pump 45 is set to a larger value, the suction amount can be set to a fixed value. Also, in the case of excessive repetition of programs due to some trouble, a threshold value of the number of programs between steps S111 and S112 may be set first. When the number of programs exceeds the threshold, the operation proceeds to step S113.

接下来，控制器50把每个主箱10中的墨水提供给次箱20(图14中的步骤S102)。即，控制器50打开每个阀43，并允许每个主箱10中的墨水流入到处于高度负压状态的每个次箱20中(图16中的步骤S121)。接下来，控制器50判断每个次箱20中的墨量是否处于少墨状态和墨满状态之间的状态(中间状态)，例如为20g或更多(图16中的步骤S122)。当墨量不处于中间状态时，控制器50等待一秒(图16中的步骤S123)。由此逐渐增大每个次箱20中的墨量，并且当进入中间状态时，控制器50关闭每个阀43(图16中的步骤S124)。Next, thecontroller 50 supplies the ink in eachmain tank 10 to the sub tanks 20 (step S102 in FIG. 14). That is, thecontroller 50 opens eachvalve 43, and allows ink in eachmain tank 10 to flow into eachsub tank 20 in a highly negative pressure state (step S121 in FIG. 16). Next, thecontroller 50 judges whether the amount of ink in each sub-tank 20 is in a state (intermediate state) between the low ink state and the ink full state, for example, 20 g or more (step S122 in FIG. 16 ). When the ink amount is not in the intermediate state, thecontroller 50 waits for one second (step S123 in FIG. 16). The amount of ink in each sub-tank 20 is thereby gradually increased, and when entering the intermediate state, thecontroller 50 closes each valve 43 (step S124 in FIG. 16 ).

在此实施例中，压力泵53工作，由此对每个主箱10加压。但是，在每个主箱10不处于受压状态的系统中，因为每个次箱20处于高度负压状态，通过此负压启动每个次箱20，并且给每个管线42中填充墨水，以致于可以执行从每个主箱10向次箱20供墨。In this embodiment, thepressure pump 53 operates, thereby pressurizing eachmain tank 10 . However, in systems where eachmain tank 10 is not under pressure, since each sub-tank 20 is under a high negative pressure, each sub-tank 20 is activated by this negative pressure, and eachline 42 is filled with ink, So that ink supply from eachmain tank 10 to thesub tank 20 can be performed.

另外，在步骤S122和S123之间的程序由于某些麻烦过度重复的情况下，可以先设置足够长的时间使每个次箱20中的墨量进入中等状态。在墨量已经进入中等状态的时间超过当前一段时间的情况下，操作被迫进行到步骤S124。但是，在此情况下，即使不从每个主箱10向每个次箱20供墨，也继续进行初始填充。因此，为了避免此情形，可以在墨量已经进入中等状态的时间超过当前一段时间时，可能建立一种致命的误差(损坏)或一种墨水中断误差(在每个主箱10中都没有墨水的状态)。In addition, in the case that the procedure between steps S122 and S123 is excessively repeated due to some troubles, it is possible to set a time long enough to make the amount of ink in each sub-tank 20 enter the middle state. In a case where the ink volume has been in the middle state for longer than the current period of time, the operation is forced to proceed to step S124. In this case, however, initial filling is continued even if ink is not supplied from eachmain tank 10 to eachsub tank 20 . Therefore, in order to avoid this situation, a fatal error (corruption) or an ink break error (no ink in each main tank 10) may be established when the ink quantity has been in the middle state for more than the current period of time. status).

此处，因为从每个主箱10向每个次箱20供给的墨水包含已经存在于每个管线42中的空气，所以此空气必需也被排出。因此，控制器50排出每个次箱20中的空气和墨水(图14中的步骤S103)。即操作抽吸泵45，由此通过记录头5向每个供墨管44和每个次箱20施加槽盖装置46的负压，使得在这些元件中的空气和墨水被排出到槽盖单元46。Here, since the ink supplied from eachmain tank 10 to eachsub tank 20 contains air already existing in eachline 42, this air must also be exhausted. Accordingly, thecontroller 50 exhausts the air and ink in each sub-tank 20 (step S103 in FIG. 14). That is, thesuction pump 45 is operated, thereby applying a negative pressure of thetank cover unit 46 to eachink supply tube 44 and eachsub tank 20 through therecording head 5, so that the air and ink in these elements are discharged to thetank cover unit 46.

即，再执行参见图15和16的解释的操作，从而完全把空气和墨水排出到槽盖单元46。为了更完全地排出包含在每个主箱20中的墨水，可以多次重复步骤S103和S104。That is, the operation explained with reference to FIGS. In order to more completely discharge the ink contained in eachmain tank 20, steps S103 and S104 may be repeated multiple times.

此处，在当每个次箱20处于高度负压时打开每个阀43的情况下，墨水突然从每个主箱10流向每个次箱20并发泡，以致于脱气下降。因此，控制器50排出每个次箱的墨水中的发泡墨水，例如为总墨量的30-80％，最好为50％。即，操作抽吸泵45以抽吸每个次箱20中的墨水并将其排出到槽盖单元46(图14中的步骤S105)。Here, in the case where eachvalve 43 is opened when each sub-tank 20 is under high negative pressure, ink suddenly flows from eachmain tank 10 to each sub-tank 20 and foams so that outgassing drops. Therefore, thecontroller 50 discharges the foamed ink in the ink of each sub-tank, for example, 30-80% of the total ink volume, preferably 50%. That is, thesuction pump 45 is operated to suck the ink in eachsub tank 20 and discharge it to the tank cover unit 46 (step S105 in FIG. 14 ).

接下来，控制器50把每个主箱10中的墨水提供给每个次箱20(图14中的步骤S106)。即控制器50打开每个阀43，并允许每个主箱10中的墨水流进每个次箱20(图17中的步骤S131)。接下来，控制器50判断每个次箱20中的墨量是否处于墨满状态(图17中的步骤S132)。当墨量不处于墨满状态时，控制器50等待一秒钟(图17中的步骤S133)。当每个次箱20中的墨量达到墨满状态时，控制器50关闭每个阀43(图17中的步骤S134)。在步骤S131中，因为每个次箱20不处于负压状态，所以储存其中的墨水不会起泡。由此不能完全排出每个次箱中已经起泡的墨水，并且通过直到墨量达到墨满状态才不提供的墨水，可以稀释含气的墨水。Next, thecontroller 50 supplies the ink in eachmain tank 10 to each sub tank 20 (step S106 in FIG. 14). That is, thecontroller 50 opens eachvalve 43, and allows the ink in eachmain tank 10 to flow into each sub tank 20 (step S131 in FIG. 17). Next, thecontroller 50 judges whether or not the amount of ink in each sub-tank 20 is in a full state (step S132 in FIG. 17 ). When the amount of ink is not in the full state, thecontroller 50 waits for one second (step S133 in FIG. 17). When the amount of ink in each sub-tank 20 reaches the full state, thecontroller 50 closes each valve 43 (step S134 in FIG. 17 ). In step S131, since each sub-tank 20 is not in a negative pressure state, the ink stored therein will not bubble. As a result, ink that has been foamed in each sub-tank cannot be completely drained, and the gas-containing ink can be diluted by ink that is not supplied until the ink amount reaches the full state.

此处，为了确保初始填充之后的打印质量，因为需要在墨水中溶解剩余在记录头5中流动停滞部分中的气泡，所以必需允许预定量的脱气墨水流出。因此，控制器50对记录头5执行初始墨水填充操作(图14中的步骤S107)。即，操作抽吸泵45，由此抽出并排出每个次箱20中总墨量的50％到槽盖单元46(图18中的步骤S141)。Here, in order to ensure the print quality after the initial filling, it is necessary to allow a predetermined amount of degassed ink to flow out because it is necessary to dissolve the air bubbles remaining in the flow stagnation portion in therecording head 5 in the ink. Accordingly, thecontroller 50 performs an initial ink filling operation on the recording head 5 (step S107 in FIG. 14 ). That is, thesuction pump 45 is operated, whereby 50% of the total amount of ink in eachsub tank 20 is sucked and discharged to the tank cover unit 46 (step S141 in FIG. 18).

并且，控制器50通过驱动记录头5对发射到槽盖单元46中的墨水执行冲洗操作(图18中的步骤S142)。因此，堵在记录头5致动器周围的微小气泡与致动器分离并溶解。另外，在冲洗时间，不需要用槽盖单元46密封记录头5，但记录头5可以只位于槽盖单元46上。And, thecontroller 50 performs a flushing operation on the ink fired into thetank cover unit 46 by driving the recording head 5 (step S142 in FIG. 18 ). Therefore, minute air bubbles clogged around the actuator of therecording head 5 are separated from the actuator and dissolved. In addition, it is not necessary to seal therecording head 5 with thetank cover unit 46 at flushing time, but therecording head 5 may be located only on thetank cover unit 46 .

接下来，为了补充记录头5中初始填充而消耗的墨水，控制器50把每个主箱10中的墨水供给每个次箱20(图14中的步骤S108)。即再执行参见图17而解释的操作。Next, thecontroller 50 supplies the ink in eachmain tank 10 to eachsub tank 20 in order to supplement the ink consumed by the initial filling in the recording head 5 (step S108 in FIG. 14). That is, the operation explained with reference to Fig. 17 is performed again.

通过上述步骤，完成每个次箱20中进行的初始填充和记录头5中进行的初始填充。可以根据需要执行步骤S105、S106和步骤S107、S108。Through the above steps, the initial filling performed in eachsub tank 20 and the initial filling performed in therecording head 5 are completed. Steps S105, S106 and steps S107, S108 may be performed as required.

在此实施例中，喷墨打印机1有一个对应于一个主箱10的次箱20。但是，本发明还可以应用到对于一个主箱10有多个次箱20的一个喷墨记录装置(记录头5)，下面将作为第三实施例进行描述。In this embodiment, the ink jet printer 1 has onesub tank 20 corresponding to onemain tank 10 . However, the present invention can also be applied to an ink jet recording apparatus (recording head 5) having a plurality ofsub tanks 20 for onemain tank 10, which will be described below as a third embodiment.

在图19中，具有与图13所示相同结构的部件用相同的标号表示，并且省去对他们的详细描述。连结一个剩余墨量探测片11的主箱10容放在一个压力腔41(41B，41Y，41C，41M)中。压力腔41经电磁阀48(48B，48Y，48C，48M，以下称作一个主阀)连结到抽吸泵47的出口47b，以便随意调节其中的压力，并且连结到用于压力释放的电磁阀49(以下称作释放阀)。抽吸泵47的入口连结到一个纸张导向器6，将打印纸张固定其上。电磁阀43(43B，43Y，43C，43M；以下称作次阀)连结到管线42(42B，42Y，42C，42M)。In FIG. 19, components having the same structure as those shown in FIG. 13 are denoted by the same reference numerals, and their detailed descriptions are omitted. Themain tank 10 to which a remaining inkamount detecting sheet 11 is attached is accommodated in a pressure chamber 41 (41B, 41Y, 41C, 41M). Thepressure chamber 41 is connected to theoutlet 47b of thesuction pump 47 via a solenoid valve 48 (48B, 48Y, 48C, 48M, hereinafter referred to as a main valve) so as to adjust the pressure therein at will, and is connected to a solenoid valve for pressure release 49 (hereinafter referred to as the release valve). The inlet of thesuction pump 47 is connected to apaper guide 6 to hold the printing paper thereon. Solenoid valves 43 ( 43B, 43Y, 43C, 43M; hereinafter referred to as sub-valves) are connected to lines 42 ( 42B, 42Y, 42C, 42M).

控制器50电连结到：用于探测主箱10的剩余墨量探测器板11的运动的探测器12；通过次箱20配置的墨量探测器23的运动操作的开关25a和25b；每个阀43、48和49；和每个抽吸泵45与47。控制器50控制主箱10中剩余墨量及次箱20中的墨量的检查，驱动每个抽吸泵45、47，并打开或闭合各个阀43、48和49。在图19中，为了方便起见，没有示出每种颜色墨水的主箱10、次箱20、压力腔41、管线42、次阀43和供墨管44，而是只对一种颜色的墨水示出。Thecontroller 50 is electrically connected to: thedetector 12 for detecting the movement of the remainingink detector plate 11 of themain tank 10; theswitches 25a and 25b operated by the movement of theink detector 23 provided in thesub tank 20; eachvalves 43, 48 and 49; and eachsuction pump 45 and 47. Thecontroller 50 controls the check of the remaining ink amount in themain tank 10 and the ink amount in thesub tank 20 , drives each of the suction pumps 45 , 47 , and opens or closes therespective valves 43 , 48 and 49 . In Fig. 19, for the sake of convenience, themain tank 10, thesecondary tank 20, thepressure chamber 41, thepipeline 42, thesecondary valve 43 and theink supply pipe 44 of each color ink are not shown, but only for the ink of one color Shows.

由此通过利用抽吸泵47的空气入口和空气出口，同时进行打印纸张的固定和主箱10的施压，以致于不需要图12和13中所示的压力泵53。打印机1的大小和成本可以由此降低。Thereby, by utilizing the air inlet and air outlet of thesuction pump 47, the fixing of the printing paper and the pressurization of themain box 10 are performed simultaneously, so that thepressure pump 53 shown in FIGS. 12 and 13 is unnecessary. The size and cost of the printer 1 can thereby be reduced.

图20表示根据本发明第四实施例的喷墨记录系统中的供墨系统60。此供墨系统60包括一个主箱10，多个喷墨打印机61和一个控制整个系统的系统控制器62。Fig. 20 shows anink supply system 60 in an ink jet recording system according to a fourth embodiment of the present invention. Theink supply system 60 includes amain tank 10, a plurality ofink jet printers 61 and asystem controller 62 for controlling the entire system.

主箱10位于一个比每个喷墨打印机61的记录头低的位置，并布置成在记录头63和主箱10之间具有给定的高差。另外，主箱10通过一个管线64连结到每个记录头63，从而总是直接将存储其中的墨水供给每个记录头63。此时，因为需要负压状态制造一个记录头63喷嘴的弯月面，所以使主箱10和每个记录头63之间的高差恒定。通过使主箱10位于比记录头63低的位置，可以避免形成在每个记录头63喷嘴中的弯月面被损坏。Themain tank 10 is located at a position lower than the recording head of eachinkjet printer 61 and arranged with a given height difference between therecording head 63 and themain tank 10 . In addition, themain tank 10 is connected to eachrecording head 63 through apipeline 64 so that the ink stored therein is always directly supplied to eachrecording head 63 . At this time, the height difference between themain tank 10 and eachrecording head 63 is made constant because a negative pressure state is required to manufacture the meniscus of the nozzles of onerecording head 63 . By positioning themain tank 10 at a lower position than the recording heads 63, the meniscus formed in the nozzle of eachrecording head 63 can be prevented from being damaged.

抽吸泵65连结到每个记录头63，并且抽吸从每个记录头63喷嘴延伸的墨量通道中的空气。按照此结构，可以解决由于墨量通道中的尘埃所致的堵塞或由于喷嘴口中烘干的墨水所致的堵塞。系统控制器62监视每个记录头63中的耗墨量并管理主箱1区域的剩余墨量。Asuction pump 65 is attached to eachrecording head 63 , and sucks air in ink volume passages extending from nozzles of eachrecording head 63 . According to this structure, clogging due to dust in the ink volume passage or clogging due to dried ink in the nozzle opening can be solved. Thesystem controller 62 monitors the amount of ink consumed in eachrecording head 63 and manages the remaining amount of ink in the area of the main tank 1 .

在图20中，为了方便起见，不对彩色打印中使用的黑、青绿、品红和黄色四种颜色类型，黑、青绿、淡青绿、品红、淡品红和黄色六种颜色类型，或黑、青绿、淡青绿、品红、淡品红、黄色和暗红色七种颜色类型中的每种颜色显示主箱10、记录头63和管线64。实际上，每种颜色的主箱10和记录头63都被分隔，并且对于每种颜色通过管线64彼此连结。In Fig. 20, for the sake of convenience, the four color types of black, cyan, magenta, and yellow used in color printing, the six color types of black, cyan, light cyan, magenta, light magenta, and yellow, or black Each of the seven color types of , cyan, light cyan, magenta, light magenta, yellow and dark red shows themain tank 10 , therecording head 63 and thepipeline 64 . Actually, themain tank 10 and therecording head 63 for each color are separated, and are connected to each other by thepipeline 64 for each color.

虽然喷墨打印机61包括一个发射上述每种颜色的一个记录头63，但一个喷墨打印机61可以配置多个记录头63。Although theinkjet printer 61 includes onerecording head 63 emitting each of the above-mentioned colors, oneinkjet printer 61 may be configured with a plurality of recording heads 63 .

图21表示根据本发明第五实施例的喷墨记录系统中的供墨系统70。此供墨系统70包括一个主箱10、多个喷墨打印机71和一个控制整个系统的系统控制器72。Fig. 21 shows anink supply system 70 in an ink jet recording system according to a fifth embodiment of the present invention. Thisink supply system 70 includes amain tank 10, a plurality ofink jet printers 71, and asystem controller 72 for controlling the entire system.

每个喷墨打印机71包括一个次箱20和一个记录头73。因为需要负压状态以制造记录头73喷嘴的一个弯月面，所以使得次箱20和对应的记录头73之间的高差恒定。Eachinkjet printer 71 includes a sub-tank 20 and arecording head 73 . Since a negative pressure state is required to create a meniscus of the nozzles of the recording heads 73, the height difference between the sub-tank 20 and the corresponding recording heads 73 is made constant.

主箱10位于比每个次箱20稍高的位置，使得主箱10和每个次箱20之间有给定的高差h’，并且通过一个管线75连结到每个次箱20。次箱20通过一个管线76连结到记录头73。主箱10的容量为次箱20的总容量的几倍。电磁阀77(以下简称为阀)连结到管线75。抽吸泵78连结到记录头73，从而对从记录头73的喷嘴延伸的墨量通道施加负压，由此对主箱10中的墨水解压。通过结合高差压力，墨水一次就被送入到次箱20中。Themain tank 10 is located slightly higher than each of thesecondary tanks 20 so that there is a given height difference h' between themain tank 10 and each of thesecondary tanks 20, and is connected to each of thesecondary tanks 20 by apipeline 75. The sub-tank 20 is connected to therecording head 73 through aline 76 . The capacity of themain tank 10 is several times the total capacity of thesub tanks 20 . A solenoid valve 77 (hereinafter simply referred to as a valve) is connected to theline 75 . Asuction pump 78 is linked to therecording head 73 so as to apply a negative pressure to the ink volume passage extending from the nozzle of therecording head 73 , thereby decompressing the ink in themain tank 10 . Ink is fed into the sub-tank 20 at a time by combining the head pressure.

用次箱20中的墨水补充记录头73之后，系统控制器72关闭阀77并从记录头73发射墨水，由此进行打印。为此，系统控制器72监视每个次箱20中的墨量，并用主箱10中的墨水补充每个次箱20。After replenishing therecording head 73 with ink in thesub tank 20, thesystem controller 72 closes thevalve 77 and ejects ink from therecording head 73, thereby performing printing. To this end, thesystem controller 72 monitors the amount of ink in each sub-tank 20 and replenishes each sub-tank 20 with the ink in themain tank 10 .

如图22所示，该图表示根据本发明第六实施例的喷墨记录系统中的供墨系统70’，气泵79可以连结到一个主箱10，压缩主箱10中的墨水以补充次箱20。根据此结构，可以比图21所示系统快地把墨水提供给次箱20。而且，主箱10的外形位置不限于图21中的系统。As shown in Figure 22, this figure represents the ink supply system 70' in the inkjet recording system according to the sixth embodiment of the present invention, theair pump 79 can be connected to amain tank 10, and the ink in themain tank 10 is compressed to replenish thesub tank 20. According to this structure, ink can be supplied to the sub-tank 20 faster than the system shown in Fig. 21 . Also, the outline position of themain box 10 is not limited to the system in FIG. 21 .

如图23所示，该图表示根据本发明第七实施例的喷墨记录系统中的供墨系统70”，喷墨打印机71可以垂直分布，从而减小系统的整体面积。主箱10布置在顶部位置，每个次箱20和每个记录头73以高度差H’布置在主箱10以下。根据此种结构，由于高差，主箱10中的墨水自然地一次供给次箱20并且填充次箱20。之后，次箱20中的墨水被供给记录头73。但是，如图22中所示的系统，气泵79可以连结到主箱10以压缩主箱10中的墨水，补充次箱20。在此情况下，消除了对主箱10的位置限制。As shown in Figure 23, this figure represents theink supply system 70 " in the inkjet recording system according to the seventh embodiment of the present invention,inkjet printer 71 can be distributed vertically, thereby reduces the whole area of system.Main box 10 is arranged in At the top position, each sub-tank 20 and eachrecording head 73 are arranged below themain tank 10 with a height difference H'. According to this structure, due to the height difference, the ink in themain tank 10 is naturally supplied to the sub-tank 20 at a time and filled.Sub-tank 20. Afterwards, the ink in the sub-tank 20 is supplied to therecording head 73. But, as in the system shown in Figure 22, theair pump 79 can be connected to themain tank 10 to compress the ink in themain tank 10, supplementing the sub-tank 20 In this case, the position restriction on themain box 10 is eliminated.

在图21～23中，为了方便起见，不对每种颜色的墨水显示主箱10、次箱20、记录头73和管线75、76。事实上，主箱10、次箱20和记录头73按照每种颜色隔开并通过用于每种颜色的管线75、76彼此连结。另外，虽然喷墨打印机71包括一个发射上述每种颜色的记录头73，但一个喷墨打印机71可以配置多个记录头73。In FIGS. 21 to 23, themain tank 10, thesub tank 20, therecording head 73, and thepipelines 75, 76 are not shown for each color of ink for convenience. In fact, themain tank 10, thesub tank 20, and therecording head 73 are separated for each color and are connected to each other by thepipeline 75, 76 for each color. In addition, although theinkjet printer 71 includes onerecording head 73 that emits each color described above, oneinkjet printer 71 may be configured with a plurality of recording heads 73 .

作为通过系统控制器72执行的监视每个次箱20中的墨量的方法，例如采用一个柔软的计数器。此柔软的计数器是在次箱20中的墨水由于喷墨打印机71的打印或记录头73的清洁而被消耗时累计记录设置在打印机主体中的不易挥发的存储装置中每个次箱20耗墨量的方法。按照此方法，可以监视记录头73的打印操作期间次箱20中的耗墨状态，以致于进行每个记录头73的墨水管理。As a method of monitoring the amount of ink in eachsub tank 20 performed by thesystem controller 72, for example, a flexible counter is used. This flexible counter is to cumulatively record ink consumption persub-tank 20 in a non-volatile storage device provided in the printer main body when the ink in the sub-tank 20 is consumed due to printing of theinkjet printer 71 or cleaning of therecording head 73. Quantitative method. According to this method, the ink consumption state in thesub tank 20 during the printing operation of the recording heads 73 can be monitored so that the ink management of eachrecording head 73 is performed.

当次箱20落入预定的状态、如当次箱的厚度变为机械开关探测到的预定水平(墨水的高度状态)时，或当次箱中的压力不满足正压时，可以重置柔软计数器。之后，计算通过打印、清洁、冲洗等消耗的墨量。When the sub-tank 20 falls into a predetermined state, such as when the thickness of the sub-tank becomes a predetermined level (ink level state) detected by a mechanical switch, or when the pressure in the sub-tank does not meet the positive pressure, the softness can be reset. counter. After that, calculate the amount of ink consumed by printing, cleaning, flushing, etc.

由此，因为次箱20中的耗墨量变得接近于计算的墨量，所以当墨水提供给次箱20并且次箱20变为该墨水高度状态时，供给的墨量接近于计算的墨量。累计每个次箱20中的耗墨量，可以精确地得到主箱10的耗墨量。Thus, since the amount of ink consumed in the sub-tank 20 becomes close to the calculated amount of ink, when ink is supplied to the sub-tank 20 and the sub-tank 20 becomes this ink level state, the amount of ink supplied is close to the calculated amount of ink . By accumulating the ink consumption in each sub-tank 20 , the ink consumption of themain tank 10 can be obtained accurately.

下面将描述根据此柔软计数器给次箱20供墨的方法。A method of supplying ink to the sub-tank 20 according to this soft counter will be described below.

作为第一个例子，每次给每个次箱20供墨，累计每个次箱20的耗墨量，或累计并重置。由此，可以提高次箱20中算出的墨量总合与主箱10中耗墨量之间的精确度。另外，因为墨水提供给每个次箱20，所以不进行供墨的次箱可以用于打印，使得可以减少记录头73的打印中断。As a first example, every time ink is supplied to each sub-tank 20, the ink consumption of each sub-tank 20 is accumulated, or accumulated and reset. Thereby, the accuracy between the total amount of ink calculated in thesub tank 20 and the amount of ink consumed in themain tank 10 can be improved. In addition, since ink is supplied to each sub-tank 20 , a sub-tank not subjected to ink supply can be used for printing, so that interruption of printing by therecording head 73 can be reduced.

作为第二实例，只对需要供墨的次箱选择供墨，并且累计次箱20的耗墨量，或累计并重置。As a second example, ink supply is only selected for the sub-tanks that need ink supply, and the ink consumption of the sub-tanks 20 is accumulated, or accumulated and reset.

作为第三实例，当累计每个次箱20中的耗墨量时，同时给所有的次箱供墨。As a third example, when the ink consumption in eachsub tank 20 is accumulated, ink is supplied to all the sub tanks at the same time.

在第二和第三实例中，可以减少从主箱10到次箱20的供墨时间损失。In the second and third examples, the ink supply time loss from themain tank 10 to thesub tank 20 can be reduced.

从主箱10到次箱20供墨的流量可以确定成记录头73的最大喷墨流量或更大。由此，甚至在记录操作期间，因为从主箱10向次箱20的供墨量大于喷射量，所以可以避免记录头73中的打印不可能性。但是，在记录操作期间阀门77打开的情况下，产生墨量通道中的压力涨落，并且打印状态改变。因此，需要注意记录操作期间的供墨。The flow rate of ink supply from themain tank 10 to thesub tank 20 may be determined to be the maximum ink ejection flow rate of therecording head 73 or more. Thus, even during the recording operation, since the ink supply amount from themain tank 10 to thesub tank 20 is larger than the ejection amount, printing impossibility in therecording head 73 can be avoided. However, in the case where thevalve 77 is opened during the recording operation, pressure fluctuations in the ink amount passages are generated, and the printing state changes. Therefore, attention needs to be paid to ink supply during the recording operation.

下面将描述通过系统控制器72执行触发对每个次箱20供墨的方法。A method of triggering ink supply to each sub-tank 20 performed by thesystem controller 72 will be described below.

作为第一实例，当装置被激励时，执行或完成打印，打印纸张被排放，如果次箱20中的耗墨量超过预定的阈值时，墨水从主箱10供给到次箱20。记录头73打印期间此阈值设置为一个很大的值，并且除该时间以外设置为一个较小的值。由此可以控制供墨，使得当次箱20中的耗墨量较小时不从主箱10供墨。因此，可以减小由于记录头73中的供墨导致的打印中断所致的损失。As a first example, when the device is activated, printing is performed or completed, printing paper is discharged, and ink is supplied from themain tank 10 to thesub tank 20 if the ink consumption in thesub tank 20 exceeds a predetermined threshold. This threshold is set to a large value during printing by therecording head 73, and is set to a small value other than that time. Ink supply can thereby be controlled so that ink is not supplied from themain tank 10 when the amount of ink consumed in thesub tank 20 is small. Therefore, loss due to interruption of printing due to ink supply in therecording head 73 can be reduced.

作为第二实例，设置一个探测每个次箱20中的剩余墨量的剩余墨量探测器。此处，当探测到的值表明剩余墨量降低预定水平时，例如当取消了墨水高度状态，或至少可以执行打印的负压状态的少墨状态时，系统控制器72从主箱10向次箱20供给墨水。因此，因为可以提高次箱20中剩余墨量的探测精确度，所以可以有效地执行从主箱10向次箱20的供墨。As a second example, a remaining ink amount detector for detecting the remaining ink amount in eachsub tank 20 is provided. Here, when the detected value indicates that the amount of remaining ink is lowered by a predetermined level, for example, when the ink level state is canceled, or at least the low ink state of the negative pressure state where printing can be performed, thesystem controller 72 sends themain tank 10 to the secondary tank.Tank 20 supplies ink. Therefore, since the detection accuracy of the remaining ink amount in thesub tank 20 can be improved, ink supply from themain tank 10 to thesub tank 20 can be efficiently performed.

此处，例如把图4中所示的墨量探测器23连结到次箱20并固定到固定片24。通过此种结构，因为墨量探测器23根据次箱20由于墨量的变化所致的膨胀或收缩而运动，所以墨量探测器23的运动可以通过机械的、电的或光学探测器探测，或者可以把一个线性度量仪连结到墨量探测器23，以便减少次箱20中的剩余墨量和耗墨量。由此可以抑制由柔软计数器探测到的耗墨量的不均匀。Here, for example, theink level sensor 23 shown in FIG. 4 is attached to the sub-tank 20 and fixed to the fixingpiece 24 . With this structure, since theink amount detector 23 moves according to the expansion or contraction of the sub-tank 20 due to the variation of the ink amount, the movement of theink amount detector 23 can be detected by mechanical, electrical or optical detectors, Alternatively, a linear gauge may be connected to theink level detector 23 in order to reduce the amount of remaining ink in the sub-tank 20 and the amount of ink consumed. Thereby, the unevenness of the ink consumption detected by the soft counter can be suppressed.

例如，可以提供两个或多个剩余墨量探测器。此处，在进行一个探测器的探测时开始供墨，并且在进行另一个探测器的探测时终止供墨。由此可以精确地知道剩余墨量。For example, two or more remaining ink level sensors may be provided. Here, ink supply is started when detection by one detector is performed, and ink supply is terminated when detection by the other detector is performed. Thereby, the remaining ink amount can be accurately known.

或者，剩余墨量探测器可以是一个。由此可以减少剩余墨量探测器的成本。在此情况下，在进行剩余墨量探测器的探测期间进行供墨。由此可以减少供墨时间。或者，在进行剩余墨量探测器的探测时供给预定时间的墨水。由此可以增大供给量。或者，在次箱10的耗墨量超过阈值之后供墨，直到剩余墨量探测器进行探测。由此可以最精确地知道供墨量，并且可以降低成本。Alternatively, the remaining ink sensor may be one. Thus, the cost of the remaining ink sensor can be reduced. In this case, the ink supply is performed while the detection of the remaining ink amount sensor is performed. Thereby, the ink supply time can be reduced. Alternatively, ink is supplied for a predetermined time when detection by the remaining ink sensor is performed. Thus, the supply amount can be increased. Alternatively, the ink is supplied after the ink consumption of thesub tank 10 exceeds the threshold, until the remaining ink sensor detects. In this way, the ink supply amount can be known most accurately, and the cost can be reduced.

在每次激励装置时进行从主箱10向次箱20的供墨。由此可以减少供墨导致的记录头73打印中断所致的时间损失。另外，在每次过了预定的时间之后进行从主箱10向次箱20的供墨。此处，甚至在装置被规律地激励、以致于不能在激励时执行供墨的情况下，也可以确保执行从主箱10向次箱20的供墨。或者，可以在每次激励装置时以及在过了预定的时间时执行供墨。Ink supply from themain tank 10 to thesub tank 20 is performed every time the device is activated. Thereby, time loss due to interruption of printing by therecording head 73 due to ink supply can be reduced. In addition, ink supply from themain tank 10 to thesub tank 20 is performed every time a predetermined time elapses. Here, ink supply from themain tank 10 to thesub tank 20 can be surely performed even in a case where the device is regularly activated so that ink supply cannot be performed upon activation. Alternatively, the ink supply may be performed each time the device is activated and when a predetermined time elapses.

可以从主箱10向次箱20供给每天的耗墨量。因此当装置被激励时只进行供墨操作。因此，可以消除由供墨操作所致的激励操作的中断，并且可以提高记录过程的效率。此处，从主箱10向次箱20的供墨顺序没有特别的限制。例如，无论次箱20的外形高度、供墨通道的长度或耗墨量如何，都可以从任意一个次箱20供墨。The daily ink consumption can be supplied from themain tank 10 to thesub tank 20 . The ink supply operation is therefore only performed when the device is activated. Therefore, the interruption of the energizing operation due to the ink supply operation can be eliminated, and the efficiency of the recording process can be improved. Here, the order of ink supply from themain tank 10 to thesub tank 20 is not particularly limited. For example, ink can be supplied from any one of the sub-tanks 20 regardless of the height of the outline of the sub-tank 20, the length of the ink supply path, or the amount of ink consumed.

下面将描述系统控制器72之间的终止供墨的方法。A method of terminating the ink supply between thesystem controllers 72 will be described below.

作为第一实例，由记录头73执行每次打印，累计每个次箱20的耗墨量，由此计算主箱10中的剩余墨量，并且从主箱10向次箱20供墨。当系统控制器72判断主箱10的墨水端状态时，所有的记录头73都进入墨水端状态。次箱20中的耗墨总量变得等于主箱10的耗墨量，以致于可以确保执行从主箱10向次箱20的供墨。As a first example, each printing is performed by therecording head 73 , the ink consumption of eachsub tank 20 is accumulated, thereby calculating the remaining ink amount in themain tank 10 , and ink is supplied from themain tank 10 to thesub tank 20 . When thesystem controller 72 judges the ink end state of themain tank 10, all the recording heads 73 enter the ink end state. The total amount of ink consumption in thesub tank 20 becomes equal to that of themain tank 10 so that ink supply from themain tank 10 to thesub tank 20 can be surely performed.

在此情况下，在探测到主箱10的墨水端状态之后，由记录头73执行记录，直到每个次箱20的耗墨量变为预定值或更多。由此精确计算主箱10中的剩余墨量，并且不会无益地使用次箱20中的墨水。In this case, after the ink end state of themain tank 10 is detected, recording is performed by therecording head 73 until the ink consumption of eachsub tank 20 becomes a predetermined value or more. The amount of remaining ink in themain tank 10 is thereby accurately calculated, and the ink in thesub tank 20 is not used uselessly.

作为第二实例，当从主箱10向次箱20供墨时，系统控制器72比较每个次箱20中的耗墨量和主箱10中的剩余墨量。当耗墨量少于剩余墨量时供墨；并当耗墨量大于剩余墨量时，系统控制器72判定主箱10处于墨水端状态。由此可以确保执行从主箱10向次箱20的供墨。当耗墨量大于剩余墨量时，系统控制器72可以比较所有次箱20中的剩余墨量和主箱10的剩余墨量而不执行供墨。如果前者大于后者，则系统控制器72判定主箱10处于墨水端状态。由此可以减少无益的墨量。As a second example, when ink is supplied from themain tank 10 to thesub tanks 20 , thesystem controller 72 compares the amount of ink consumed in eachsub tank 20 with the remaining amount of ink in themain tank 10 . Ink is supplied when the ink consumption is less than the remaining ink; and when the ink consumption is greater than the remaining ink, thesystem controller 72 determines that themain tank 10 is in the ink end state. Thereby, ink supply from themain tank 10 to thesub tank 20 can be surely performed. When the ink consumption amount is greater than the remaining ink amount, thesystem controller 72 may compare the remaining ink amounts in all thesub tanks 20 with the remaining ink amount of themain tank 10 without performing ink supply. If the former is greater than the latter, thesystem controller 72 judges that themain tank 10 is in the ink end state. In this way, useless ink volumes can be reduced.

或者，甚至当耗墨量大于剩余墨量时，可以在判定墨水端状态之前只执行一次供墨。由此甚至在主箱10中的剩余墨量存在不均匀的情况下也可以尽可能多地消耗主箱10中的墨水。或者，甚至当耗墨量大于剩余墨量时供墨；并在剩余墨量探测器不变化时系统控制器72判定主箱10处于墨水端状态。由此可以消除耗墨量不均匀的影响。Alternatively, even when the amount of ink consumed is greater than the amount of remaining ink, ink supply may be performed only once before judging the state of the ink end. The ink in themain tank 10 can thereby be consumed as much as possible even in the case where there is unevenness in the amount of remaining ink in themain tank 10 . Alternatively, ink is supplied even when the ink consumption amount is greater than the remaining ink amount; and thesystem controller 72 judges that themain tank 10 is in the ink end state when the remaining ink amount detector does not change. In this way, the influence of unevenness in ink consumption can be eliminated.

作为不采用柔软计数器向次箱20供给墨水的方法，当系统控制器72从墨量探测器23的探测值判定剩余墨量处于多墨状态时，即墨满状态时，阀77关闭，由此停止从主箱10向次箱20的供墨。因此，即使中途停用装置，也可以确保探测次箱20中的剩余墨量。因此，不会在从主箱10向次箱20的供墨中产生不利之处。As a method of supplying ink to the sub-tank 20 without using a flexible counter, when thesystem controller 72 judges from the detection value of theink volume detector 23 that the remaining ink volume is in a state of excess ink, that is, when the ink is full, thevalve 77 is closed, thereby stopping the operation. Ink supply from themain tank 10 to thesub tank 20 . Therefore, even if the device is stopped halfway, the amount of ink remaining in thesub tank 20 can be detected with certainty. Therefore, no disadvantage occurs in ink supply from themain tank 10 to thesub tank 20 .

对每个次箱20、只对预定的次箱20或同时对所有的次箱20执行此方法。因此可以很容易地执行从主箱10向次箱20的供墨。此处，在对所有的次箱20同时执行此方法的情况下，有下列缺点。当所有次箱20的阀77被打开时，墨水通过例如高差从较高的次箱20运动到较低的次箱20。如果在较高的次箱20中的墨水空了的状态下停用该装置，则相应的记录头73不能执行打印。This method is carried out for each sub-box 20 , only for apredetermined sub-box 20 or for all sub-boxes 20 at the same time. Therefore, ink supply from themain tank 10 to thesub tank 20 can be easily performed. Here, in the case where this method is carried out simultaneously for all the sub-tanks 20, there are the following disadvantages. When thevalves 77 of all sub-tanks 20 are opened, ink moves from theupper sub-tank 20 to thelower sub-tank 20 through, for example, a height difference. If the device is deactivated in a state where the ink in theupper sub-tank 20 is empty, thecorresponding recording head 73 cannot perform printing.

为了避免这种情形，在系统控制器72根据墨量探测器23的探测值判定次箱20变为少墨状态时，阀77关闭。In order to avoid this situation, when thesystem controller 72 judges that the sub-tank 20 becomes a low-ink state according to the detection value of theink level detector 23, thevalve 77 is closed.

可以对主箱10配置一个墨水端探测器。在此情况下，系统控制器72在接收到墨水端探测器的探测信号时判断墨水端状态。主箱10用一个新的替换之后，给次箱20供墨，直到墨量探测器23探测到次箱20处于墨满状态为止。由此可以简化系统结构。Themain tank 10 may be provided with an ink end detector. In this case, thesystem controller 72 judges the state of the ink end upon receiving the detection signal of the ink end detector. After themain tank 10 is replaced with a new one, ink is supplied to thesub tank 20 until theink level sensor 23 detects that thesub tank 20 is in the ink full state. The system structure can thus be simplified.

根据上述结构，因为只管理一个主箱10中的墨水，所以稳定了对多个记录头73的供墨，并且可以提高印刷质量。According to the above structure, since ink in only onemain tank 10 is managed, ink supply to a plurality of recording heads 73 is stabilized, and printing quality can be improved.

此外，可以把用于在主箱10中存储剩余墨量的存储装置连结到主箱10，由此可以更具体地执行墨水管理。Furthermore, a storage device for storing the remaining amount of ink in themain tank 10 may be attached to themain tank 10, whereby ink management can be performed more specifically.

在上述的每一个实施例中，虽然次箱20配置有粘结剂防护器22，但可以从次箱20中省去。In each of the embodiments described above, although the sub-tank 20 is provided with theadhesive protector 22, it may be omitted from the sub-tank 20.

虽然以打印机为例进行了解释，但如果在其中配置了主箱和次箱，传真机和复印机也可以作为喷墨记录装置。Although the printer was explained as an example, a facsimile machine and a copier can also be used as the inkjet recording apparatus if a main box and a sub box are arranged therein.

Claims (35)

1. ink feeding system comprises:

A main tank, ink stores wherein;

A plurality of casees are communicated with said main tank, and each time case is communicated with at least one recording section; With

System controller is kept watch on the China ink amount that consumes in each time case, thus the residue China ink amount in the management main tank,

Wherein, system controller is recognized the China ink amount that consumes in the main tank of doing to the total China ink amount that consumes in all times case.

2. ink feeding system as claimed in claim 1, wherein, flexible material is close to be formed each time case airtightly with having, the variable volume of feasible time case.

3. ink feeding system as claimed in claim 1, wherein, when the black quantitative change in being stored in time case was predeterminated level, system controller began to calculate the ink consumption of time case.

4. ink feeding system as claimed in claim 1, wherein, system controller all obtains the ink consumption of each time case whenever with additional case of main tank ink supplied the time.

5. ink feeding system as claimed in claim 1, wherein, system controller supplies with ink at least one time case that needs to replenish ink selectively, and obtains the ink consumption of this at least one time case.

6. ink feeding system as claimed in claim 1, wherein, system controller obtains the ink consumption of each time case, and supplies with all inferior casees to ink simultaneously.

7. ink feeding system as claimed in claim 1, wherein, ink flow into the flow velocity that the flow velocity in time case flows out from the recording section that links to each other with inferior case greater than ink.

8. ink feeding system as claimed in claim 1, wherein, the China ink amount that system controller consumes in inferior case begins to inferior case ink supply when surpassing threshold level.

9. ink feeding system as claimed in claim 8, wherein, selected first threshold level and selected second threshold level during executive logging not when threshold level comprises the recording section executive logging less than the first threshold level.

10. ink feeding system as claimed in claim 1, wherein,

Each time case disposes at least one and surveys the wherein detector of residue China ink amount,

When detector detected excess ink and is equal to or less than predeterminated level, system controller began to supply with ink to inferior case.

11. ink feeding system as claimed in claim 10, wherein,

Dispose a plurality of detectors for each time case,

System controller begins to supply with ink to inferior case when a detector is surveyed, and when another detector is surveyed, stops ink supply.

12. ink feeding system as claimed in claim 10, wherein, detector of each time case configuration.

13. ink feeding system as claimed in claim 12, wherein, system controller is given time case ink supply during detector is surveyed.

14. ink feeding system as claimed in claim 12, wherein, system controller supplies with the ink of predetermined amount of time for time case when detector is surveyed.

15. ink feeding system as claimed in claim 8, wherein,

Each time case is provided with at least one detector of surveying residue China ink amount wherein,

System controller stops ink supply when detector is surveyed.

16. ink feeding system as claimed in claim 1, wherein, when system is energized system controller from main tank to each time case ink supply.

17. ink feeding system as claimed in claim 1, wherein, when having crossed the preset time section system controller from main tank to each time case ink supply.

18. ink feeding system as claimed in claim 1, wherein, when the recording section executive logging, thus after the ink consumption that obtains each time case calculates the residue China ink amount in the main tank, system controller from main tank to inferior case ink supply.

19. ink feeding system as claimed in claim 1, wherein,

System controller obtains the ink consumption of each time case when each recording section executive logging, thereby calculates the residue China ink amount in the main tank,

When the China ink amount of the residue in the main tank for predeterminated level or still less the time, ink end state appears in all recording sections.

20. ink feeding system as claimed in claim 19, wherein, recording section continues record, till the predetermined China ink amount after ink end state occurring in time case is consumed.

21. ink feeding system as claimed in claim 1, wherein,

System controller compares China ink amount and the China ink of the residue in the main tank amount that consumes in each time case continuously,

The inferior case that system controller compares providing ink when the ink consumption of inferior case relatively is less than residue China ink amount,

Ink end state appears when the ink consumption of inferior case is relatively measured greater than the residue China ink.

22. ink feeding system as claimed in claim 1, wherein,

System controller compares China ink amount and the China ink of the residue in the main tank amount that consumes in each time case continuously,

System controller is given inferior case ink supply relatively when the ink consumption of inferior case relatively is less than residue China ink amount,

System controller is not given inferior case ink supply relatively when the ink consumption of inferior case is relatively measured greater than the residue China ink,

Ink end state appears during not by the inferior case of ink supply as at least one.

23. ink feeding system as claimed in claim 21, wherein, even when ink end state occurring, also carry out an ink supply.

24. ink feeding system as claimed in claim 21, wherein, even when ink end state occurring, also carry out ink supply, till in detector, any variation not occurring.

25. ink feeding system as claimed in claim 10, wherein,

Between main tank and each time case, be provided with valve element,

When detector detect residue China ink amount reach predeterminated level or more for a long time valve element close.

26. ink feeding system as claimed in claim 25, wherein, each valve element and another valve element are closed independently.

27. ink feeding system as claimed in claim 25, wherein, each valve element is closed selectively.

28. ink feeding system as claimed in claim 25, wherein, all valve elements are closed simultaneously.

29. ink feeding system as claimed in claim 28, wherein, when at least one detector in the inferior case detector detected one case case nearly empty, all valve elements were all closed.

30. ink feeding system as claimed in claim 1, wherein,

Main tank disposes first detector of the residue China ink amount of surveying in the main tank,

Reach predeterminated level or occur ink end state still less the time when first detector detects residue China ink amount.

31. ink feeding system as claimed in claim 30, wherein,

Each time case disposes second detector of detection residue China ink amount wherein,

When ink end state occurring, when second detector detects time case almost during trunkful, system controller stops ink supply.

32. ink feeding system as claimed in claim 1 also comprises the black memory of measuring of residue that is used for storing main tank.

33. ink feeding system as claimed in claim 2, wherein, each time case comprises chip component, prevents that the inner surface of time case is bonded to one another.

34. ink feeding system as claimed in claim 33 wherein, forms groove on the surface of chip component.

35. one kind in like the ink feeding system of claim 1～34 described in each management supply to the method for the China ink amount of time case from main tank.

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