FIELD OF THE INVENTIONThe present invention relates to a printer system and a method of reproducing an image.[0001]
BACKGROUND OF THE INVENTIONPrinters in conventional arrangements have been configured to interface with one or more associated computers and to generate a plurality of images responsive to received page description language data from such associated computers. More recently, the roles of printers have been expanded to provide more varied functions. For example, some printers have been developed to provide conventional printing operations in combination with an associated computer as well as to provide operations normally handled by copiers.[0002]
Such printers can be coupled with one or more accessory devices to provide enhanced flexibility and an increased number of functions. Some exemplary printer arrangements are configured to couple with a scanner accessory device to provide a printer system capable of typical copy functions. Scanners are configured to convert images provided upon media into electronic information. The converted electronic data corresponding to the images can be transferred to the associated printer. Thereafter, the printer operates to reproduce the scanned images upon outputted media.[0003]
Conventional scanner arrangements typically include one or more mechanisms configured to provide scanning of images of pages to be reproduced. Typical scanner arrangements include an automatic document feeder (ADF) as well as a flatbed (glass) area. Such permits rapid reproduction of a plurality of documents having a common size as well as traditional copying of pages having different sizes.[0004]
These conventional printer arrangements suffer from distinct disadvantages. For example, conventional systems fail to provide a convenient copying process for reproducing a plurality of images which are originally provided on pages of different sizes. Using conventional arrangements, a user runs two sets of jobs through the copier to enable reproduction of a multi-page job from the flatbed area. A first job is a single copy of all the different sized originals individually copied from the flatbed. The first copy provides the images to be reproduced onto paper having a common size. Thereafter, the first job comprising the multiple images provided on common sized paper is fed through the automatic document feeder providing the second job. Such permits the second print job to be mass copied, collated, stapled, etc. However, some image quality is sacrificed because the final output job (i.e., second job) is copied from a copy (i.e., first job).[0005]
Therefore, a need exists to provide improved devices and methodologies for copying multi-page jobs from a flatbed area of a scanner or copier.[0006]
SUMMARY OF THE INVENTIONThe present invention includes a printer system and a method of reproducing an image. One aspect of the present invention provides a printing system including a scanner including an image reception device configured to flatbed scan a print job including a plurality of pages and output image data corresponding to the pages; a print engine controller coupled with the scanner and configured to receive the print job including the image data corresponding to the pages; and a print engine coupled with the print engine controller and configured to print a plurality of collated copies of the print job.[0007]
Another aspect of the present invention provides a method of reproducing an image comprising: providing a scanner; coupling a printer with the scanner; flatbed scanning a print job comprising a plurality of pages using the scanner; and printing a plurality of collated copies of the print job.[0008]
Yet another aspect of the present invention provides a method of reproducing an image comprising: providing a scanner; coupling a printer with the scanner; flatbed scanning a plurality of input pages using the scanner; outputting image data from the scanner which corresponds to the input pages; and printing at least one output page having image data from plural input pages using the printer.[0009]
DESCRIPTION OF THE DRAWINGSPreferred embodiments of the invention are described below with reference to the following accompanying drawings.[0010]
FIG. 1 is an isometric view of an exemplary printer system of the present invention.[0011]
FIG. 2 is a functional block diagram of the printer system shown in FIG. 1.[0012]
FIG. 3 is a functional block diagram of hardware components of an exemplary printer configuration of the printer system.[0013]
FIG. 4 is a functional block diagram of hardware components of an exemplary scanner configuration of the printer system.[0014]
FIG. 5 is a flow chart illustrating one method for determining the type of processing to be performed by the printer system.[0015]
FIG. 6 is a flow chart illustrating one method for implementing job binding processing in accordance with the present invention.[0016]
FIG. 7 is a flow chart illustrating one method for implementing job binding processing of a flatbed N-Up print job in accordance with the present invention.[0017]
DETAILED DESCRIPTION OF THE INVENTIONThis disclosure of the invention is submitted in furtherance of the constitutional purposes of the U.S. Patent Laws “to promote the progress of science and useful arts” ([0018]Article 1, Section 8).
Referring to FIG. 1, an exemplary configuration of a[0019]printer system1 according to the present invention is illustrated. The described embodiment discloses a printer system although the present invention is applicable to other image forming device technologies. The depictedprinter system1 comprises aprinter2 and ascanner3. In general,scanner3 includes an input device adapted to receive images to be reproduced.Scanner3 generates and outputs image data corresponding to the images toprinter2.Printer2 comprises a network printer in an exemplary embodiment.
The depicted[0020]scanner3 includes an automatic document feeder (ADF)4 to provide automatic feeding and scanning of one or more documents. Alternatively, flatbed scanning may be provided by liftingautomatic document feeder4 and placing individual pages upon a flatbedimage reception device5, such as a flatbed window ofscanner3.Scanner3 further includes auser interface6 configured to display status information regarding operation ofscanner3.User interface6 is also operable to prompt a user and to receive input from a user to control operation ofscanner3.
An interface (not shown in FIG. 1)[0021]couples printer2 andscanner3. Exemplary interfaces include a parallel connection, or an IEEE-1394 serial bus.Printer2 includes a print engine (not shown in FIG. 1) configured to provide an image upon media which corresponds to received image data. Printed media including the images are provided to anoutput bin7. The depictedprinter2 also includes auser interface8 configured to display status information ofprinter2.User interface8 is also operable to prompt a user and receive commands from a user.
Referring to FIG. 2, a high level functional block diagram of one embodiment of[0022]printer system1 is illustrated.Printer system1 includesprinter2 coupled withscanner3. Aninterface9 is coupledintermediate printer2 andscanner3.
FIG. 2 generally depicts communication channels intermediate various components and does not depict internal circuitry of the individual components.[0023]Scanner3 includes acopy processor10 configured to communicate data intermediate internal components ofscanner3 withinterface9.Printer2 includes an input/output (I/O)port11 configured to communicate dataintermediate interface9 and internal components ofprinter2. In some embodiments, I/O port11 is also configured to couple with anexternal host computer12.Host computer12 can be configured to communicate print description language (PDL) data and other information to I/O port11 ofprinter2.
Referring to FIG. 3, hardware of an[0024]exemplary printer2 is illustrated. The depictedprinter2 comprises a plurality of storage devices including a single-in-line-memory module (SIMM)device13, random-access memory (RAM)device14, read-only memory (ROM)device15, and hard diskdrive storage device16.Storage device13 can also comprise a dual-in-line-memory module (DIMM) in another arrangement.Individual storage devices13,14,15,16 are coupled with abidirectional bus17 for implementing data communications withinprinter2.
Additional hardware of the depicted[0025]printer2 includes an input/output (I/O)port18,print engine controller19,print engine20,input tray21, and output and finishingtray22.Printer2 additionally includes aprocessor23, such as a microprocessor, configured to control functions ofprinter2.Processor23 communicates with other hardware elements ofprinter2 viabus17.
I/[0026]O port18 comprises an input/output device adapted to couple withscanner3 andhost computer12.Host computer12 can include a personal computer or network computer arrangement external toprinter2. I/O port18 can comprise a serial interface and/or a parallel interface which provide communications withscanner3 andhost computer12. I/O port18 receives image data fromscanner3 and page description language (PDL) data fromhost computer12 for processing withinprinter2. Further, other data can be communicated using I/O port18.
[0027]Print engine controller19 and associatedprint engine20 are coupled tobus17 and provide print output capability forprinter2 in but one embodiment. Sheet media is pulled frominput tray21 intoprint engine20 and subsequently directed to output and finishingtray22. Output and finishingtray22 includes, in an exemplary embodiment, finishing feature mechanisms such as sheet registration, binding, stapling, punching, and the like, and may include one or more bins for collation or “mailbox” usage purposes.Input tray21 may also include a plurality of input trays for varied media selection.
According to the described embodiment,[0028]print engine20 is a multi-resolution capable engine. For example, it can print, selectively, at 600 or 1200 dots per inch (dpi). For purposes of this disclosure,print engine18 is a laser printer that employs an electrophotographic drum imaging system. Other printers are utilized in other embodiments.
In general, the operation of[0029]printer2 commences responsive to the reception of page description language data fromhost computer12 or image data fromscanner3 via I/O port18. The page description language data or image data is initially placed in random-access memory14.Processor23 accesses the page description language data and/or image data, and performs operations specified by firmware.
Random-[0030]access memory14 provides main memory storage capabilities withinprinter2 for storing and processing print job data streams received fromhost computer12 andscanner3. Random-access memory14 comprises dynamic random-access memory (DRAM) in an exemplary embodiment. Read-only memory (ROM)14 contains firmware which controls the operation ofprocessor23 andprinter2 including, for example, the inputting and outputting of data, rasterizing received data and controllingprint engine20 ofprinter2.
Referring to FIG. 4, hardware of an[0031]exemplary scanner3 is illustrated. The depictedscanner3 includes acopy processor10 coupled with ascanner engine30. Other arrangements ofscanner3 are possible.Copy processor10 may be configured to provide the following functionality including: image processing, interfacing withprinter2, interfacing with and controllingscanner engine30, operatinguser interface6 ofscanner3, and mapping user settings to configuration data appropriate for internal processing of scanned images.
The depicted[0032]copy processor10 includes aninternal processor32. One configuration ofprocessor32 comprises a 16-bit microprocessor having part designation 68306 available from Motorola, Inc. The depictedcopy processor10 also comprises a read-only memory device34, a dynamic random-access memory (DRAM)storage device36, plural digital signal processors (DSPs)38,39, plural static random-access memory (SRAM)storage devices40,41, and an I/O port42.
During operation, a user can input commands via[0033]user interface6 shown in FIG. 1. User inputted commands are received bycopy processor10.Scanner engine30 is configured to scan provided images.Scanner engine30 outputs image data corresponding to the received images to copyprocessor10.
Communications[0034]intermediate scanner3 andscanner engine30 include a scanner control channel and an image data bus.Copy processor10 can be connected to internal electronics ofscanner engine30. In the preferred embodiment,copy processor10 acts as the master of communications withscanner engine30 and thus, no unsolicited data flows fromscanner engine30 to copyprocessor10. An exemplary control channelintermediate processor32 andscanner engine30 comprises a half-duplex asynchronous serial bus at TTL-levels. A scanner image bus coupledintermediate scanner engine30 and firstdigital signal processor38 comprises a unidirectional 8-bit parallel link providing communications at 10 MHZ in accordance with the described embodiment.
[0035]Processor32 preferably controls displays ofuser interface6 and also monitors user inputs provided intouser interface6.Processor32 can include plural embedded peripherals including a DRAM controller, timers and UARTs for scanner communication and debug.Digital signal processors38,39 are configured to transfer image dataintermediate scanner engine30 andinterface9 for application toprinter2. Such enablesprocessor32 to controluser interface6 and PJL and PCL control sequences utilized to provide image transfers fromscanner3 toprinter2.
Image data is forwarded from[0036]scanner engine30 into pluraldigital signal processors38,39. In one embodiment,digital signal processors38,39 individually comprise a part designation PM-44 DSP available from Pixel Magic, Inc.Digital signal processors38,39 are operable to provide a plurality of processing functions for received image data fromscanner engine30. For example,digital signal processors38,39 can be configured for functions including background removal, filtering, clipping, scaling, block rotation, resolution enhancement, sideband conversion, etc.
Individual[0037]SRAM storage devices40,41 are dedicated to respectivedigital signal processors38,39 and are available to temporarily store image data during the processing of the data. The processed image data is forward to I/O port42 for application toprinter2. In particular, image data may be applied tointerface9 for application toprinter2 with PJL and PCL commands implemented byprocessor32.
Preferably,[0038]printer2 contains appropriate memory to store the transferred image data. Image data is stored withinRAM14 in the described configuration. Image data may be applied toprinter2 viainterface9 on a line-by-line basis as soon as processing is completed withindigital signal processors38,39.
[0039]Interface9 is configured to provide additional communicationsintermediate printer2 andscanner3. For example, printer status responses and user settings programmed viauser interface8 ofprinter2 may be applied to copyprocessor10 viainterface9. Likewise, user settings inputted viauser interface6 ofscanner3 may be applied toprinter2 viainterface9. Printer control commands can be outputted viacopy processor10 and applied tointerface9 andprinter2. In the preferred arrangement,copy processor10 is the master of the communications withprinter2.
[0040]Printing system1 of the present invention is configured to provide improved processing of multi-page flatbed jobs.Copy processor10 requests the user to indicate the type of upcoming print job. A user initially inputs a command intoscanner3 to request job binding. Job binding can be utilized to generate plural collated copies from plural input pages scanned using flatbed scanning techniques. The user can also indicate whether duplex or N-Up printing is to be provided within the job binding operation.
Thereafter,[0041]printer system1 is configured to provide job binding operations in accordance with the present invention.Printer system1 implementing job binding operations can create plural collated copies of plural original input pages fromflatbed5 without the need to generate an intermediate copy (also referred to as a one-off copy of the originals). Such provides improved image quality.
During operation in job binding mode, images are scanned from pages placed upon[0042]flatbed5 byscanner engine30. Inasmuch as flatbed scanning is utilized, the scanned pages can have a plurality of different sizes. The scanned images are applied toprinter2 viainterface9 and are stored withinhard disk drive16 thereof. If plural collated copies of the original images are to be made,printer2 typically will not proceed to make such copies until the last page has been scanned byscan engine30. The user can indicate when no more pages are to be scanned. Following completion of the scanning operation of the print job,printer2 is configured to output plural copies of the print job. The copies may be individually collated, stapled, etc.
In some configurations,[0043]printer2 begins to print and output a first copy of the print job before the last image of the print job is scanned. However, subsequent copies of the print job are usually not printed until the last image of the print job has been scanned. Thereafter, plural copies of the print job can be generated and outputted.
Following the receipt of appropriate commands from the user via[0044]user interface6 indicating a job binding print job,copy processor10 is configured to send a “begin job” request to the printer. This request specifies the number of copies to be made and the printer destination bin (e.g., stapler, particular mailbox, etc.).
Thereafter,[0045]copy processor10 sends a “begin page” request toprinter3. The “begin page” request specifies the paper source (e.g., paper size, media type, input tray, or some combination thereof) for the output page. This request also specifies the orientation and origin of the output page.
After[0046]printer3 acknowledges the “begin page” request,copy processor10 sends a “begin image” command which can include the starting position of the image, the color space (e.g., RGB), the color mapping (e.g., additive gray), the color depth (e.g., one bit per pixel), the source width and height, and the destination width and height. Thereafter,copy processor10 scans theflatbed5 and sends the image data toprinter3. After the image data is sent,copy processor10 sends an “end image” command. Image data corresponding to a plurality of scanned pages can be sent for one output page when N-Up copying is selected. After all data is sent for one output page,copy processor10 is configured to send an “end page” command.
Since multi-page flatbed jobs include a multiple of input pages, the user is prompted to put in another input page and press the go key after individual input pages. The exact prompt depends upon the options the user has selected (e.g., “place side two of page X on ‘glass’ for the backside of a duplex page”).[0047]
The user can select a “no more input pages” softkey anytime the user is prompted to put in another input page. When the user presses this key,[0048]copy processor10 sends the “end page” command to finish the current output page. Thereafter,copy processor10 sends the “end job” command to finish the current print job. An inactivity timer can be associated with this process. The timer resets each time the user pushes the “go” or “start” key. If the timer expires,copy processor10 acts as if the user has pressed the “no more input pages” softkey and operates accordingly.
If N-Up or duplex printing is selected by the user, image data from multiple input pages are sent per output page.[0049]Copy processor10 can selectively scale the scanned image data and provide the starting position and the height and width of individual image blocks.Copy processor10 sends only one “begin page” request per output page. If the user presses a “stop” key during this process,copy processor10 sends a cancel job command toprinter2. If the scanner/printer status changes while waiting forprinter2 to acknowledge an outstanding request,scanner3 processes the status event. Some status events may causecopy processor10 to return to an earlier state or a device attendance mode. For example, ifprinter2 runs out of paper during printing,printer2 enters a device attendance mode whereinscanner3 prompts the user to check the status ofprinter2. Following the resolution of the condition requiring attendance,scanner3 returns to its previous position in the scanning process. Any timeout counters can be reset following the device attendance mode.
Referring to FIG. 5 and FIG. 6, an exemplary method is depicted for implementing job binding in accordance with the present invention. The following procedure can be implemented within firmware of[0050]scanner3 and executed byprocessor32.
Referring to FIG. 5, procedure for processing a print job including selection of a copy job type is depicted. It is determined whether the user has placed pages within the[0051]automatic document feeder4 at step S10. If it is determined at step S10 that pages are present inautomatic document feeder4,processor32 proceeds to step S12 to determine whether duplex-in copying is selected by the user.Processor32 begins implementing processing of a duplex automatic document feeder print job at step S14 if duplex-in print copying is selected at step S12. Alternatively,processor32 begins processing of a simplex automatic document feeder print job at step S16 responsive to duplex-in copying not be selected at step S12.
Responsive to no pages being present in[0052]automatic document feeder4 at step S10,processor32 proceeds to step S18 for flatbed processing and to determine whether job binding is selected by the user. Job binding is typically selected when the user requests more than one copy of a print job and collated copies are requested.Processor32 implements processing of a multi-page flatbed job at step S20 responsive to job binding being selected at step S18. Alternatively,processor32 implements processing of a single page flatbed print job at step S22 responsive to job binding not being selected at step S18.
Referring to FIG. 6, job binding processing of a multi-page flatbed print job (indicated in step S[0053]20 of FIG. 5) is described according to one methodology of the present invention. Following entry into the multi-page flatbed processing mode,processor32 proceeds to step S30 to scan an image fromflatbed5 following the user depressing a “start” key.
Thereafter,[0054]processor32 proceeds to step S32 to prompt the user viauser interface6 to determine whether another page will be added to the print job. At step S34,processor32 awaits input from the user viauser interface6. If no input is received at step S34,processor32 proceeds to step S36 to monitor whether a predefined time out period has elapsed. If the time out period has elapsed,processor32 ends the copy job. If the time out period has not elapsed as determined at step S36,processor32 returns to step S34 to await input from the user.
Responsive to user input being entered,[0055]processor32 proceeds to step S38 to determine whether the “no” soft key has been depressed responsive to the “add another page to job” query.Processor32 ends the copy job if the user has depressed the “no” soft key. Alternatively,processor32 proceeds to step S40 responsive to the user not depressing the “no” soft key. At step S40, it is determined whether the user has depressed the “stop” key.Processor32 cancels the copy job if the user has depressed the “stop” key. Otherwise,processor32 proceeds to step S42 to determine whether the user has pressed the “yes” soft key.Processor32 returns to step S34 if the user has not pressed the “yes” soft key.
[0056]Processor32 proceeds to step S44 to prompt the user to press the “start” key to continue responsive to the “yes” soft key being depressed at step S42. Thereafter,processor32 proceeds to step S46 to determine whether the user has provided input.Processor32 proceeds to step S48 to determine whether a predefined timeout period has elapsed responsive to a waiting condition at step S46. The copy job ends if the timeout period has elapsed as determined by step S48. Otherwise,processor32 returns to step S46 responsive to the time out period not being elapsed.
Following user input via[0057]user interface6,processor32 proceeds to step S49 to determine whether the “stop” key has been pressed.Processor32 cancels the copy job if the user has depressed the “stop” key. Alternatively,processor32 proceeds to step S50 to determine whether the user has pressed the “start” key. If not,processor32 returns to step S46 to wait for reception of user input. Otherwise,processor32 returns to step S32 to scan another image fromflatbed5.
The job binding copying process in accordance with the present invention can additionally implement copying of multiple input pages via[0058]flatbed5 for a single output page (e.g., N-Up copying). In particular,processor32 can query the user whether additional input pages are desired to finish the current output page. If so,processor32 requests the next page and does not yet send an “end page” command toprinter2. Once it is determined no more input pages are needed to finish the current page,processor32 outputs the “end page” command toprinter2.
Referring to FIG. 7, an exemplary flow chart is shown depicting one methodology for processing a flatbed N-Up print job in accordance with the present invention. Job binding is utilized to provide processing of multi-page N-Up print jobs from[0059]flatbed5 ofscanner2. Following the selection of an N-Up print job (e.g., 2-Up, 4-Up, etc.) and the user presses start,processor32 proceeds to step S60 to determine whether there are pages in automatic document feeder (ADF)4. If pages are present inautomatic document feeder4,processor32 proceeds to step S62 to process the print job fromautomatic document feeder4 in a normal manner. Alternatively,processor32 proceeds to step S64 to implicitly enable job binding. As described below, job binding requests the user to input whether additional input pages are needed to complete either a single output page or the print job. A complete print job is printed viaprinter3 following an indication from the user there are no more input pages to be scanned. Such enablesprinter3 to collate, staple, etc. the print jobs as well as provide N-Up printing fromflatbed5 ofscanner3.
Following the enablement of job binding,[0060]processor32 proceeds to step S66 and sends a “begin job” and “begin page” request toprinter2. Thereafter, the input page is flatbed scanned usingscanner3 and image data corresponding thereto is provided toprinter2 at step S68. Thereafter,processor32 proceeds to step S70 and decides whether more input pages are needed to finish the output page. Responsive to no more pages being needed,processor32 proceeds to step S72 and forwards an “end page” command and a “begin page” request toprinter2. Otherwise,processor32 proceeds to step S74 and prompts the user to indicate whether another page is to be added to the print job. Responsive to the user indicating no more pages are to be added,processor32 proceeds to step S76 and sends “end page” and “end job” commands toprinter2. Thereafter, the scanner enters an idle state. Otherwise,processor32 proceeds to step S78 and waits for the user to press the “start” button.
[0061]Processor32 scans the input page and sends image data corresponding to the page toprinter2 at step S68 responsive to the user pressing the “start” button. Alternatively,processor32 proceeds to step S80 where it is determined whether the scanner/printer status has changed.Processor32 processes the scanner/printer status event responsive to a change in status at step S82. If the status has not changed,processor32 proceeds to step S84 and determines whether the “stop” button is pressed. If the “stop” button is not pressed,processor32 returns to step S78. Otherwise,processor32 proceeds to step S86 and cancels the current copy job andscanner3 enters an idle state.
In compliance with the statute, the invention has been described in language more or less specific as to structural and methodical features. It is to be understood, however, that the invention is not limited to the specific features shown and described, since the means herein disclosed comprise preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of its forms or modifications within the proper scope of the appended claims appropriately interpreted in accordance with the doctrine of equivalents.[0062]