JP4259260B2 - Printing apparatus, order sheet checking method, and program - Google Patents

Description

  The present invention relates to a printing apparatus that prints an image selected based on a result of reading an order sheet, a method for checking an order sheet, and a program.

  Recently, relatively inexpensive printers integrated with scanners (printing apparatuses) have been put into practical use and are becoming popular in ordinary households. This printing apparatus is used not only as a printer or scanner by connecting a personal computer, but also as a copier without connecting a personal computer or the like. Also known as the printing apparatus is a model having a so-called direct print function in which each image file stored in a memory card is directly printed without a personal computer.

  When performing the direct printing, a memory card is mounted in the card slot of the printing apparatus, and an order sheet 61 as shown in FIG. 8 is printed using plain paper. In this order sheet 61, the reduced images 62 of the respective image files stored in the memory card are displayed as a list by index formation, and an elliptical print selection field 63 is provided below each image 62. . The user can select an image to be printed by painting the print selection field 63 black. A plurality of size designation fields 64 for designating the print size are provided in the lower area of the order sheet 61. Similarly to the print selection field 63, the size designation field 64 has an elliptical shape and can be designated by blacking out the paper size.

  Further, a check code 66 used for matching the sheet 61 with the image file on the memory card is printed in a predetermined pattern in the code printing field 65 on the upper right of the order sheet 61. This check code 66 is obtained by coding the sum value of the check sum of the entire memory card. Based on the check code 66, it is determined whether or not the data in the memory card has been rewritten after the order sheet 61 is printed. can do. When the data in the memory card is rewritten due to addition or deletion of the image file, it is determined that the data has been rewritten based on the read result of the check code 66, and the image file on the memory card is determined. The order sheet 61 corresponding to is reprinted.

  Further, as a method for checking the order sheet 61, there is a method in which the number of images printed on the order sheet 61 is compared with the number of files on the memory card. For example, when a new image file is added to the memory card, it is determined that the data in the memory card has been rewritten due to an increase in the number of files, and the order sheet 61 is reprinted.

  Incidentally, in addition to storing image files shot with a digital camera or image files edited with a personal computer or the like, files other than images such as document files may be stored in the memory card. Specifically, after the order sheet 61 is printed, when the memory card of the printing apparatus is mounted on the personal computer and the document file is stored in the memory card, the check code 65 read from the order sheet 61 and the memory card check The sum value of the sum does not match. Therefore, when the direct printing of the memory card is performed after the document file is stored in the memory card, the check code does not match even if the image file to be printed is not updated. It cannot be used, and the order sheet 61 needs to be reprinted. Even when the order sheet is checked based on the number of files on the memory card, if a document file is added to the memory card, the order sheet needs to be reprinted.

The present invention has been made in order to solve the above-described problems. The object of the present invention is to save a print target in the memory even when a file (such as a document file) other than the image file to be printed is written in the memory. Provided a printing apparatus, order sheet check method, and program that can print a selected image using the order sheet if the image file has not been updated. There is to do.

To achieve the above object, the present invention provides a memory for storing various files including an image file to be printed, a scanner unit for reading an image of a document, and printing an image read by the scanner unit on a medium. A printer unit for printing, and the printer unit prints an order sheet for allowing a user to select printing of each image file stored in the memory, and the scanner unit reads the order sheet. And a determination unit that determines whether each file stored in the memory is an image file to be printed, and an image file to be printed. and check data acquisition means asking you to check data from the information of each file is determined, the switch Ekkudeta And confirmation means for confirming the integrity of the image file of the order sheet and a memory in which the scanner portion is read using, if it is confirmed the matching image of the image file based on the read result of the order sheet by the scanner unit And a control means for causing the printer section to perform printing.

According to this, the check data is obtained from the information of the file determined to be the image file to be printed out of each file stored in the memory, and the order sheet corresponds to each image file in the memory by the check data. It is determined whether or not the sheet is to be processed. In this case, the check data is not changed unless the image file to be printed is updated in the memory. Therefore, even when a file (such as a document file) other than an image file is written in the memory, the order sheet and the image file in the memory can be matched, and the selected image can be printed using the order sheet. . In other words, in the prior art, when a document file or the like is written in the memory, a checksum error occurs and the order sheet needs to be reprinted. However, in the present invention, the check data is not changed. Can be prevented.

In this printing apparatus, the check data is a checksum of the file name of the image file to be printed, the determining means, the files stored in the memory to search, the search file is to be printed it is determined whether the image file, the check data acquisition means, when it is determined that the image file to be printed, and registers the image file of the print target print file list, whereas, printed If it is determined that the file is not an image file, the file is not registered in the print file list, and a checksum of the file name is obtained based on the print file list.

According to this, the registration is determined to be an image file to be printed file, the file is determined not to be an image file to be printed based on the print file list is not registered, the file of each image file A checksum of the name is obtained as check data. In this case, the checksum calculation time can be shortened as compared with the case of obtaining the checksum of all the data in the memory as in the prior art. In addition, it is possible to accurately determine that an image file has been added to or deleted from the memory.

In this printing apparatus, when the memory is mounted, the determination by the determination unit and the processing by the check data acquisition unit are performed to obtain a checksum of the file name.
According to this, the checksum is not calculated unless the memory is inserted and removed, and the checksum is calculated when the memory whose data is updated by the personal computer or the like is attached to the printing apparatus. Therefore, it is possible to prevent the checksum from being calculated at an unnecessary timing when the image file is not updated.

In this printing apparatus, the printer unit prints a check code obtained by encoding the checksum on the order sheet, and the confirmation unit checks the file name based on the check code read from the order sheet by the scanner unit. The consistency is confirmed by determining whether or not the code corresponds to the thumb .

  According to this, it is possible to easily check the order sheet with the check code as compared with the case of checking the order sheet by printing the checksum value on the order sheet and recognizing the number.

The present invention also provides a memory for storing various files including an image file to be printed, a scanner unit for reading an image of a document, and a printer unit for printing an image read by the scanner unit on a medium. The printer unit prints an order sheet for allowing a user to select printing of each image file stored in the memory, and based on a reading result of the order sheet by the scanner unit, of the order sheet check method in a printing apparatus for printing an image of the image file, it is determined whether the image file to be printed for each file stored in the memory, the image file to be printed Check data is obtained from the information of each file determined to be present, and the check data encoded with the check data is obtained. The Kukodo printing to the printer unit before Symbol order sheet, then, when printing an image of the image files, the code in which the check code of the order sheet in which the scanner unit has read corresponds to the switch Ekku data determined the Check if it exists.

According to this, even when a document file or the like is written in the memory, if the image file to be printed is not updated, the check data is not changed. Printing can be prevented.

The present invention also provides a memory for storing various files including an image file to be printed, a scanner unit for reading an image of a document, and a printer unit for printing an image read by the scanner unit on a medium. When, and a computer, the computer, along with make print order sheet for selecting the printing of each image file stored in the memory to the user to the printer unit, the reading of the order sheet by the scanner unit Based on the result, in the printing apparatus that causes the printer unit to print the image of the image file, the computer is a program for checking the order sheet, and the computer stores each file stored in the memory. to determine whether the image file to be printed on A step, for each file that the computer determines that the image file to be printed, and storing the file name of the checksum calculation and storing means, the computer is encoded in the check code to the checksum, the a step of causing printing the check code in the order sheet instructs the printer unit, during printing of an image of the image file, check the check code of the order sheet in which the scanner unit has read it is stored in the storage means The computer confirming whether the code corresponds to the thumb or not.

  According to this, reprinting of the order sheet can be prevented similarly to the above printing method.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
The printing apparatus according to the present embodiment is an SPC composite having a plurality of functions such as a network scan function (Scanner) that gives a scan instruction from a personal computer (PC), a network printer function (Printer) that gives a print instruction from a PC, and a local copy function (Copy) Device.

FIG. 1 is a perspective view showing the SPC multifunction apparatus 1, and FIG. 2 is a perspective view showing the SPC multifunction apparatus 1 with the document table cover opened.
As shown in FIGS. 1 and 2, the SPC multifunction apparatus 1 includes a scanner unit 2 for reading an image of a document and inputting it as image data, and a printer unit for printing an image on a medium such as paper based on the image data. 3 and an operation panel unit 4 for a user to operate. In the SPC multifunction apparatus 1, the image data read by the scanner unit 2 is transmitted to the printer unit 3, converted into print data by an internal processing circuit, and an image based on the print data is printed on paper, thereby enabling a local copy function. Realized.

  The scanner unit 2 is disposed on the printer unit 3, and an A4 platen glass plate 6 for placing a document to be read is placed on the scanner unit 2, and when the document is read or not used. A document table cover 7 covering the document table glass 6 is provided. The document table cover 7 is formed to be openable and closable, and has a function of pressing a document placed on the document table glass 6 toward the document table glass 6 when the document table cover 7 is closed.

  Further, a paper supply unit 11 for supplying paper to the printer unit 3 is provided on the back side of the SPC multifunction apparatus 1, and the paper supply unit 11 includes a paper feed tray 12 that holds cut paper (not shown). Is provided. A paper discharge unit 13 that discharges the paper printed by the printer unit 3 is provided at the lower part on the front side of the SPC multifunction apparatus 1, and the paper discharge unit 13 can block a paper discharge port when not in use. A paper discharge tray 14 is provided. Further, an operation panel unit 4 is provided above the paper discharge unit 13. In the present embodiment, the A4 plate is described as an example of the maximum sheet size of the cut sheet, but this is an example, and the present invention is not limited to this.

  A liquid crystal display 16 is provided almost at the center of the operation panel unit 4. The liquid crystal display 16 can display setting items, setting states, operation states, and the like in characters, and can also display images read by the scanner unit 2. On the left side of the liquid crystal display 16, a power button 17, a scan button 18, a setting display button 19, and a clear button 20 are provided.

  The power button 17 is a button for turning on / off the power of the SPC multifunction apparatus 1. The scan button 18 is a button for starting reading of a document by the scanner unit 2. The setting display button 19 is a button for causing the liquid crystal display 16 to display a setting state for the copy function set by the user. The clear button 20 is a button for clearing the setting for the copy function and changing each setting item to a default value.

  On the right side of the liquid crystal display 16, a color copy button 22, a monochrome copy button 23, a stop button 24, and a copy number setting button 25 (25a, 25b) are provided. The color copy button 22 is a button for starting color copy, and the monochrome copy button 23 is a button for starting monochrome copy. Therefore, these copy buttons 22 and 23 serve as both a copy operation start instruction and a selection means for selecting whether the image to be output is color or monochrome. The stop button 24 is a button for stopping the copy operation once started. The copy number setting button 25 is composed of two buttons 25a and 25b with “+” or “−” written on the front surface, and the set number is increased by pressing the “+” button 25a, and the “−” button 25b. Press to decrease the set number.

  A menu button 26 for switching setting items displayed on the liquid crystal display 16 is provided on the front side of the liquid crystal display 16. The menu button 26 is composed of two buttons arranged on the left and right, and a left-pointing arrow or a right-pointing arrow is shown respectively. Each time the left or right menu button 26 is pressed, the setting items to be displayed are sequentially switched in the determined order, and when the display is completed, the first setting item is displayed. The left and right arrows are for changing the order in which the setting items are displayed. Both buttons 26 display the setting items in the reverse order of the display order when the other buttons are pressed.

  A memory card slot 27 is provided on the right side of the paper discharge unit 13. The memory card slot 27 conforms to, for example, the PCMCIA standard, and a memory card 28 conforming to such a standard is configured to be detachable. The memory card 28 incorporates a rewritable nonvolatile memory, and a plurality of image files to be printed are stored in the memory card 28.

  Further, on the side of the main body of the SPC multifunction apparatus 1, connection means for connecting to an external device, for example, a USB port 29 is provided. The USB port 29 connects the SPC multifunction apparatus 1 and the host computer via a USB cable. By connecting the SPC multifunction apparatus 1 to the host computer, the image capturing to the host computer by the scanner function and the print output by the printer function are realized.

  The scanner unit 2 irradiates light on a document through a document table glass 6 from a light emitting unit (not shown) provided therein, and detects light reflected by the document with a CCD (charge coupled device), thereby placing the document on the document table glass 6. Read the description (image or text) of the placed document.

  The printer unit 3 is configured to output a color image. For example, cyan (C), magenta (M), yellow (Y), and black (K) color inks are printed on a medium such as printing paper. An ink jet method is employed in which an image is formed by forming dots by discharging the ink upward. In addition to the above four colors, light cyan (light cyan, LC), light magenta (light magenta, LM), and dark yellow (dark yellow, DY) may be used as the color ink.

  FIG. 3 is a block diagram showing an electrical configuration of the SPC multifunction apparatus 1. FIG. 3 shows a circuit configuration for realizing the copy function, and an interface circuit and the like necessary for functioning as a printer or a scanner connected to a personal computer or the like are omitted.

  The SPC multifunction apparatus 1 includes a main board (not shown) that performs overall control in the case of the printer unit 3. A CPU embedded ASIC (Application Specific IC) 41, a program ROM 42, a first SDRAM 43, and a second SDRAM 44 are mounted on the main board.

  The ASIC 41 includes a CPU 45, a scanner input circuit 46, an image processing circuit 47, a memory card input / output circuit 48, a head control unit 49, and a JPEG decompression circuit 50, which are connected to an internal bus 41a on the ASIC 41. . The internal bus 41a is connected to a program ROM 42, a first SDRAM 43, and an operation panel unit 4 that are externally attached to the ASIC 41. The program ROM 42 stores a control program executed by the CPU 45 and the like. The first SDRAM 43 temporarily stores image data and print data to be processed by executing the control program.

  The second SDRAM 44 is connected to a scanner input circuit 46 and an image processing circuit 47, and temporarily stores image data and print data before and after processing in the circuits 46 and 47. In the second SDRAM 44, a plurality of memory areas (a line buffer 44a, a microweave buffer 44b, an image buffer 44c, etc.) are secured.

  The scanner unit 2 is connected to the scanner input circuit 46. The scanner unit 2 optically reads a document placed on the platen glass 6 and A / D-converts charges stored in a CCD (charge coupled device) 2a by an A / D conversion circuit 2b. The scanner unit 2 inputs the A / D converted data to the scanner input circuit 46 of the ASIC 41.

  The scanner input circuit 46 temporarily stores each raster line data (RGB multi-tone image data) input from the scanner unit 2 in the line buffer 44 a of the SDRAM 44 under the control of the CPU 45. Then, the scanner input circuit 46 sequentially performs inter-line correction processing on the RGB data fetched into the line buffer 44a and sends it to the image processing circuit 47 as RGB data for the same line. The inter-line correction process is a process for correcting the deviation of the reading position between the R, G, and B linear sensors that occurs due to the structure of the scanner unit 2. More specifically, the CCD 2a included in the scanner unit 2 has a linear sensor of one line for each color for three colors of R (red), G (green), and B (blue). Since these three linear sensors are arranged in parallel in the scanning direction of the reading carriage (not shown), they cannot simultaneously receive the reflected light applied to the same line of the document. That is, when reflected light irradiated to the same line of the original is received by each linear sensor, a time shift occurs. For this reason, it is a process for synchronizing the data sent with a delay corresponding to the arrangement of the linear sensors.

  The scanner input circuit 46 also performs resolution conversion processing for converting the RGB data reading resolution [dpi] into the printing resolution [dpi] for printing by the printer unit 3 in parallel with the interline correction processing. That is, when the reading resolution of RGB data is lower than the printing resolution, new data is generated between the adjacent data by performing linear interpolation or the like, and conversely when it is higher than the printing resolution, a certain ratio For example, the resolution of RGB data is made equal to the print resolution by thinning out the data. The same applies to enlargement or reduction copying.

  The image processing circuit 47 takes in image data that has undergone resolution conversion processing, and performs image processing such as color conversion, halftone processing, and microweave processing. The color conversion process is a process of converting RGB multi-tone image data into CMYK four-color multi-tone image data. Halftone processing is processing for converting multi-gradation data into area gradation data. The microweave process is a process of adjusting a dot line forming method in order to prevent stripes (banding) between rows.

  In the image processing circuit 47, the data subjected to the microweave process is stored in the microweave buffer 44b. Further, the image processing circuit 47 reads out the data stored in the buffer 44b for each predetermined size and rearranges the data based on various information (for example, the number of nozzles for each color, the number of head scans, etc.), and then the image buffer 44c. Forward to. As a result of this data transfer, the image buffer 44c stores head drive data for ejecting ink to each nozzle for each scan of a writing carriage (not shown) provided in the printer unit 3.

  The head drive data (print data) for each scan stored in the image buffer 44 c is read by the CPU 45 and transferred to the head control unit 49. The head control unit 49 drives the printer head 51 based on the head drive data under the control of the CPU 45, and controls whether or not ink droplets are ejected and the amount of ink droplets to be ejected. As a result, copy printing for the image read by the scanner unit 2 is realized.

  The memory card input / output circuit 48 functions as an interface circuit when the memory card 28 is inserted into the memory card slot 27. The memory card 28 of the present embodiment stores an image file taken with a digital camera (not shown), an image file edited with a personal computer, and the like. These image files are files obtained by compressing RGB image data in, for example, the JPEG format, and the CPU 45 reads the image file from the memory card 28 via the memory card input / output circuit 48 and transfers it to the JPEG decompression circuit 50.

  The JPEG decompression circuit 50 decompresses (decodes) the image file into RGB multi-gradation image data by performing a decoding process on the image file read from the memory card 28 under the control of the CPU 45. The image data is stored in the SDRAM 43. The image data is transferred to the image processing circuit 47 under the control of the CPU 45, and converted into print data by the image processing described above. Then, by driving the printer head 51 based on the print data, an image corresponding to the image file on the memory card 28 is printed.

Next, a process for performing direct printing on the memory card 28 in the SPC multifunction apparatus 1 of the present embodiment will be described.
First, when the memory card 28 is inserted into the memory card slot 27 of the SPC multifunction apparatus 1 by the user, the CPU 45 detects the insertion of the memory card 28 and performs a checksum calculation process shown in FIG.

  That is, in step 100, the CPU 45 searches for a file stored in the memory card 28, and in step 110, determines whether the searched file is an image file to be printed. If the CPU 45 determines that the image file is to be printed, the CPU 45 registers the image file in the print file list in step 120 and then proceeds to step 130. On the other hand, if it is determined that the retrieved file is a document file or the like and is not an image file to be printed, the process proceeds to step 130 without performing the process of step 120.

  In step 130, the CPU 45 determines whether or not the search for all the files stored in the memory card 28 has been completed. If there is an unsearched file, the process returns to step 100, The processing of 100 to 120 is repeatedly executed. As a result, as shown in FIG. 5, all the image files stored in the memory card 28 are sequentially registered in the print file list L1. The print file list L1 is created in the work area of the SDRAM 43, for example.

  When the retrieval of all files in the memory card 28 is completed, the CPU 45 proceeds from step 130 to step 140. Then, check sums of all the file names registered in the print file list L1 are calculated, the calculated sum values are stored in the SDRAM 43, and then this process is terminated.

  At the time of order sheet printing, the user operates the menu button 26 to set items for direct print order sheet printing. Then, after A4 size plain paper is set in the paper feed tray 12 of the paper supply unit 11, the copy button 22 is turned on. When the CPU 45 detects the button operation, the CPU 45 performs the processing shown in FIG. 6 and prints the order sheet 61 shown in FIG.

  That is, in step 200, the CPU 45 encodes the checksum sum value calculated in step 140 of FIG. 4 into the check code 66, and then proceeds to step 210 to print the order sheet 61. Specifically, the CPU 45 sends print data for printing the check code 66 to the head control unit 49, and drives the printer head 51 based on the print data, thereby printing the pattern of the check code 66 in the code column. . At this time, the CPU 45 sequentially reads out the image files registered in the print file list L1 from the memory card 28 and transfers them to the JPEG decompression circuit 50. The JPEG decompression circuit 50 decodes the image file in the JPEG format into RGB image data. The CPU 45 sends the image data to the image processing circuit 47 and converts the image data into print data. Then, the CPU 45 sends the converted print data to the head control unit 49 and drives the printer head 51 based on the print data, thereby reducing the reduced image 62 corresponding to each image file stored in the memory card 28. Is printed in index format.

  As described above, in the order sheet 61 of this embodiment, the checksum of the file name of the print image is calculated, not the checksum of all the data in the memory card 28, and the check code 66 is obtained by encoding the checksum sum value. Is printed. When the image selected on the order sheet 61 is printed, the order sheet 61 and the image file on the memory card 28 are matched based on the check code 66.

  Next, processing for printing a selected image using the order sheet 61 will be described with reference to the flowchart of FIG. In this printing, the user confirms each image 62 of the order sheet 61, paints the print selection field 63 and the size designation field 64 of the image 62 desired to be printed in black, and then displays the order sheet 61 on the platen glass. 6 is placed. Then, after setting the paper of the size designated in the size designation column 64 to the paper feed tray 12 of the paper supply unit 11, the copy button 22 is turned on. The CPU 45 starts the process of FIG. 7 when detecting the button operation.

  First, in step 300, the CPU 45 outputs a control signal to the scanner unit 2, and scans the order sheet 61 placed on the platen glass 6 by the scanner unit 2. At this time, the order sheet 61 is irradiated with light from the inside of the scanner unit 2 through the original table glass 6, the reflected light from the order sheet 61 is detected by the CCD 2a, and the read data converted by the A / D conversion circuit 2b is obtained. Output from the scanner unit 2.

  In step 310, the CPU 45 takes in the read data through the scanner input circuit 46, and reads the pattern of the check code 66 encoded based on the data. At this time, the CPU 45 also reads selection information such as whether or not the print selection column 63 corresponding to each image 62 and the size designation column 64 for designating the print size are painted black.

  Thereafter, the CPU 45 proceeds to step 320 and compares the sum value decoded from the check code 66 with the sum value obtained in step 140 of FIG. If the thumb values match, the process proceeds to step 330, where the CPU 45 determines the image 62 to be printed based on the selection information in each print selection field 63, and in step 340, based on the determination result. Print processing. Specifically, the CPU 45 determines an image file to be printed out of each image file stored in the memory card 28 based on the selection information in the print selection field 63, reads the image file, and decompresses the JPEG. Transfer to circuit 50. Then, the CPU 45 sends the image data decoded by the JPEG decompression circuit 50 to the image processing circuit 47 and notifies the image processing circuit 47 of the print size corresponding to the selection information in the size designation field 64. As a result, the image processing circuit 47 performs image processing according to the print size and generates print data according to the print size. The CPU 45 sends the print data to the head control unit 49, and drives the printer head 51 based on the print data, thereby printing the image selected in the print selection field 63 of the order sheet 61. In the process of step 340, for all the images selected by the order sheet 61, each image data is sequentially converted into print data, and printing is performed based on the print data. Then, the CPU 45 ends this process when all the selected images of the order sheet 61 are printed.

  On the other hand, if it is determined in step 320 that the checksums do not match, the CPU 45 proceeds to step 350. Then, the CPU 45 sends predetermined display data to the operation panel unit 4 to notify that each image file stored in the memory card 28 does not match each image on the order sheet 61 (code mismatch error message). Is displayed on the liquid crystal display 16, and then the present process is terminated. When the message is confirmed by the user, the process of FIG. 6 is executed and a new order sheet 61 is reprinted.

As described above, according to the present embodiment, the following effects can be obtained.
(1) A file stored in the memory card 28 is searched, and each image file to be printed is registered in the print file list L1. Then, by referring to this print file list L1, for each image file to be printed, a checksum of the file name is calculated. Based on this checksum, it is determined whether or not the order sheet 61 is a sheet corresponding to each image file on the memory card 28. In this case, the checksum is not changed unless the image file to be printed is updated in the memory card 28. Therefore, even when a file (such as a document file) other than an image file is written in the memory card 28, the order sheet 61 and the image file on the memory card 28 can be matched, and the selected image on the order sheet 61 Printing can be performed. That is, in the conventional technique, when a document file or the like is written to the memory card 28, a checksum error occurs and the order sheet 61 needs to be reprinted. However, in this embodiment, the checksum is not changed. 61 can be prevented from being reprinted.

  (2) Since the checksum of the file name of each image file stored in the memory card 28 is calculated, the checksum of the checksum is compared with the case where the checksum of the entire memory card is obtained as in the prior art. Calculation time can be shortened. In addition, it is possible to accurately determine that an image file has been added to or deleted from the memory card 28.

  (3) When the memory card 28 is inserted into the memory card slot 27 provided in the SPC multifunction apparatus 1, a checksum of the file name of each image file stored in the memory card 28 is obtained. In this case, the checksum is not calculated unless the memory card 28 is inserted or removed. When the memory card 28 whose stored data is updated by a personal computer or the like is inserted into the SPC multifunction apparatus 1, the checksum is not calculated. Calculated. In this way, it is possible to prevent the checksum from being calculated at an unnecessary timing when the image file is not updated.

  (4) The check code 66 obtained by encoding the check sum value is printed on the order sheet 61, and the check code 66 read from the order sheet 61 by the scanner unit 2 is stored in the memory card 28. It is determined whether the code corresponds to the checksum. In this case, it is possible to easily check the order sheet 61 using the check code 66 as compared with the case of checking the order sheet 61 by printing the checksum value on the order sheet 61 and recognizing the number.

  (5) When the sum value of the check code 66 read from the order sheet 61 does not match the check sum calculated from the image file name of the memory card 28, an error is displayed on the liquid crystal display 16. When the error is confirmed by the user, the new order sheet 61 can be reprinted.

In addition, you may implement the said embodiment in the following aspects.
In the above embodiment, the checksum of the file name of the image file stored in the memory card 28 is used as check data. However, the present invention is not limited to this. The check data may be obtained from the information on the image file stored in the memory card 28. For example, the checksum of the data of each image file may be used.

  In the embodiment described above, the check code obtained by coding the checksum sum value in the order sheet 61 is pattern-printed. However, the checksum value may be directly printed. However, in this case, it is necessary to recognize the checksum value and the printed number. Therefore, it is practically preferable to read the check code 66 as in the above-described embodiment because erroneous recognition at the time of code reading can be prevented.

  The order sheet 61 is provided with a size designation field 64 and the paper size is designated by the selection information in the size designation field 64. However, the order sheet 61 is changed to designate the paper size by operating the buttons on the operation panel unit 4. May be. In this case, the size designation field 64 in the order sheet 61 is omitted.

  In the above embodiment, a JPEG format file is stored in the memory card 28 as an image file to be printed. However, for example, an Exif format, a TIFF format, which are image file formats for digital still cameras, An image file such as a bitmap format may be stored.

  In the above embodiment, the SPC composite apparatus 1 having the three functions of the scanner, the printer, and the copy is embodied. However, the printing that realizes the function as a copier by connecting the scanner and the printer, which are separate devices, is performed. It may be embodied in a device.

The technical idea that can be grasped from each of the above embodiments will be described below.
(1) When the check code read from the order sheet is not a code corresponding to the checksum of the file name, the order sheet corresponding to the image file in the memory is reprinted. The printing apparatus as described.

  (2) The printing apparatus according to claim 2, wherein a slot for inserting and removing the memory is provided, and the checksum is calculated when the memory is installed in the slot.

  (3) The printing apparatus according to any one of claims 1 to 4, wherein the scanner unit and the printer unit are integrated, and have a plurality of functions of a scanner function, a printer function, and a copy function. .

The perspective view which shows a SPC compound apparatus. The perspective view which shows the SPC composite apparatus of the state which opened the cover of the scanner part. The block diagram which shows the electrical constitution of a SPC compound apparatus. 6 is a flowchart showing checksum calculation processing. Explanatory drawing which shows a print file list. 6 is a flowchart illustrating order sheet printing processing. 6 is a flowchart illustrating a printing process of a selected image. Explanatory drawing which shows an order sheet.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... SPC compound apparatus as printing apparatus, 2 ... Scanner part, 3 ... Printer part, 28 ... Memory card as memory, 61 ... Order sheet, 66 ... Check code, L1 ... Print file list.

Claims (6)

A memory for storing various files including an image file to be printed; a scanner unit for reading an image of a document; and a printer unit for printing an image read by the scanner unit on a medium. The unit prints an order sheet for allowing a user to select printing of each image file stored in the memory, and prints an image of the image file based on a reading result of the order sheet by the scanner unit. A printing device that
A determination unit configured to determine whether an image file to be printed for each file stored in the memory, checks the data acquisition means from the information of each file it is determined that the image file to be printed Ru calculated check data when the reading of the order sheet by the scanner unit when it is confirmed and confirmation means, the matching to verify the integrity of the image file of the order sheet and a memory in which the scanner portion is read using the Chi Ekkudeta printing apparatus, wherein the this with the printing of the images of the image files based on the results and control means for causing said printer unit. The check data is a checksum of the file name of the image file to be printed,
It said determination means, the files stored in the memory to search, the search file is determined whether or not the image file to be printed,
The check data acquisition means, when it is determined that the image file to be printed, when registering the image file of the print target print file list, whereas, it is determined that it is not an image file to be printed, the 2. The printing apparatus according to claim 1, wherein a checksum of the file name is obtained based on the print file list without registering the file in the print file list . The printing apparatus according to claim 2, wherein when the memory is mounted, the determination by the determination unit and the processing by the check data acquisition unit are performed to obtain a checksum of the file name. The printer unit prints a check code obtained by encoding the checksum on the order sheet, and the confirmation unit includes a code corresponding to the checksum of the file name that the check code read from the order sheet by the scanner unit. The printing apparatus according to claim 2 , wherein the alignment is confirmed by determining whether or not the printing is performed. A memory for storing various files including an image file to be printed; a scanner unit for reading an image of a document; and a printer unit for printing an image read by the scanner unit on a medium. The unit prints an order sheet for allowing a user to select printing of each image file stored in the memory, and prints an image of the image file based on a reading result of the order sheet by the scanner unit. A method for checking an order sheet in a printing apparatus,
Wherein for each file stored in the memory it is determined whether the image file to be printed, determine the check data from the information of each file is determined that the image file to be printed, encoding said check data turned into a check code printed the printer unit before Symbol order sheet, then, when printing an image of the image files, corresponding to the switch Ekku data check code of the order sheet in which the scanner unit has read is determined the A method for checking an order sheet, wherein it is confirmed whether or not the code is a code to be processed. A memory for storing various files including an image file to be printed, a scanner unit for reading an image of a document, a printer unit for printing an image read by the scanner unit on a medium, and a computer are provided. , the computer, the order sheet in order to select the printing of each image file stored in the memory to the user along with make printing to the printer unit, based on a result of reading the order sheet by the scanner unit, wherein In the printing apparatus that causes the printer unit to print an image of an image file, the computer is a program for checking the order sheet,
Determining whether the image file to be printed for each file that the computer is stored in said memory, for each file that the computer determines that the image file to be printed, checking the file name and storing the calculated and storage means thumb, the computer is encoded in the check code to the checksum, the method comprising causing print the check code in the order sheet instructs the printer unit of the image file And the step of the computer confirming whether the check code of the order sheet read by the scanner unit is a code corresponding to the checksum stored in the storage means when the image is printed. A featured program.

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