Print cartridgeTechnical field
The present invention relates to a kind of print cartridge of ink-jet printer.
Background technology
As shown in Figure 1, direction X is the installation direction that print cartridge 100 loads printer.Print cartridge 100 has housing 110, and housing 110 has roof 101, diapire 102, antetheca 103.Antetheca 103 bottom is provided with ink outlet port 121, and top is provided with the first occlusion part 122, and the outside at middle part is provided with the second occlusion part 123.Be provided with transmittance section 124 between second occlusion part 123 and antetheca 103, the inner side in the middle part of antetheca 103 is provided with transparent area 125.Whether the first occlusion part 122 is in place for detecting print cartridge 100.Second occlusion part 123 along the thickness of direction X for judging the type of print cartridge 100, as color or volume type.Float 130 in the black chamber of print cartridge 100 can 131 rotate around the shaft, and ball float 133 drives float 130 to rotate along with the ink water level float in print cartridge 100.When ink in print cartridge 100 is sufficient, the light barrier 132 of float 130 is positioned at the below of transparent area 125, does not block the optical signal of printer; When in print cartridge 100 during ink cartridge low, the light barrier 132 of float 130 is positioned at transparent area 125, has blocked the optical signal of printer.When printer detects that optical signal is not blocked by light barrier 132, assert that the ink surplus of print cartridge 100 is not enough, forbid continuing to print.
The shortcoming of above-mentioned print cartridge is complex structure, and float occupies the large quantity space in black chamber, reduces print cartridge ink capacity.In addition, transparent area 125 is made up of the light transmissive material that cost is higher and with housing seamless link to realize the function of printing opacity and ink storage, is guarantee light transmittance, prevent light excessively weak because of scattering or refraction, the surface processing accuracy of transparent area requires high, and difficulty of processing is large, and cost is high.
Summary of the invention
It is comparatively simple that the object of the invention is to provide a kind of structure, and ink capacity is higher, and housing is easy to the print cartridge processed.
For realizing described object, print cartridge of the present invention comprises the housing with antetheca, roof and diapire, be arranged on the ink outlet port of the bottom of antetheca, be arranged on first occlusion part on the top of antetheca, be arranged on second occlusion part in the outside at the middle part of antetheca, transmittance section between the second occlusion part and antetheca, to be arranged on housing and to be positioned at the 3rd occlusion part of the inner side at the middle part of antetheca, being arranged on the chip on the outer surface of housing.Wherein, chip comprises the memory that stores ink balance information and for carrying out the communication section of communication with printer mainboard.
From above scheme, transparent area is instead of owing to adopting the 3rd occlusion part, and set up communication by the communication interface of printer mainboard with the communication section of chip and be connected, namely printer can read the ink balance information that the memory of chip stores, after printing, printer is the memory deducting the new ink balance information write chip after the ink consumption that disappears.So just, ink surplus can be realized detect, without the need to arranging float in print cartridge, also without the need to arranging transparent area on housing, also namely cartridge case is without the need to using light transmissive material, and each occlusion part of print cartridge and housing can be one-body molded by the opaque material of cheapness, reduce the shaping materials of print cartridge and require and processing technology requirement, simplify print cartridges structure, improve the ink capacity of print cartridge, improve the flexibility of print cartridges structure design, reduce production cost.
Further scheme is that chip is arranged on roof.Chip can be prevented like this by the inkiness leaked.
Further scheme is, communication section is electric contact, is positioned at the side of chip back to print cartridge.The simple cost of structure is low.
Accompanying drawing explanation
Fig. 1 is existing print cartridge schematic diagram;
Fig. 2 is the front view of print cartridge of the present invention;
Fig. 3 is the stereogram of Fig. 2.
Detailed description of the invention
As shown in Figure 2, direction X is the installation direction that print cartridge 200 loads printer.Print cartridge 200 has housing 210, and housing 210 has roof 201, diapire 202, antetheca 203.The outside of antetheca 203 bottom is provided with ink outlet port 221, and the outside on top is provided with the first occlusion part 222, and the outside at middle part is provided with the second occlusion part 223.Be provided with transmittance section 224 between second occlusion part 223 and antetheca 203, the inner side in the middle part of antetheca 203 is provided with the 3rd occlusion part 225.Whether the first occlusion part 222 is in place for detecting print cartridge 200.Second occlusion part 223 along the thickness of direction X for judging the type of print cartridge 200, as color or volume type.When print cartridge 200 is installed in printer, all being blocked by the 3rd occlusion part 225 in the whole consumption process of ink for the optical signal detecting ink surplus of printer.
As shown in Figure 3, chip 230 is arranged on the outer surface of housing 210 and is positioned on roof 201, and chip 230 has the memory (not shown) and electric contact 231 that store ink balance information.Wherein, electric contact 231 is positioned at the side of chip 230 back to print cartridge 200, as carrying out the communication section of communication with printer mainboard.
After print cartridge 200 loads printer, the communication interface of printer mainboard is set up communication with the communication section of chip 230 and is connected, printer reads the ink balance information in the memory of chip 230, if balance information is lower than the lower threshold set in printer, printer prompts more renews print cartridge, if balance information is higher than the lower threshold set in printer, then allow to print.After printing, printer is the memory deducting the new ink balance information write chip 230 after the ink consumption that disappears.
When communication section is electric contact, the communication interface of printer mainboard is also electric contact.But communication section of the present invention is not limited to electric contact, can also be radio-frequency coil, now the communication interface of printer mainboard be also radio-frequency coil.
The light that the light emission part of each occlusion part of the present invention to printer sends " blocking " is not limited to optical signal to block, and can also be that the light light emission part of printer being sent by the mode reflected or reflect departs from original path and can not arrive corresponding light receiver.