JP2010264760A - Printing device, program, and printing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing device capable of freely deleting a part of print data received from a host computer without changing the host computer, a program, and a printing method. <P>SOLUTION: The printing device includes a receiving means 100 for receiving print data from a host computer 40, a deleted line setting means 81 for setting the line of the received print data to be deleted, a print data deleting means 86 for deleting print data equivalent to the line set by the deleted light setting means 81, and a printing means 120 for printing data on a receipt on the basis of real print data being print data after the deletion by the print data deleting means 86. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a printing apparatus that prints on a receipt based on print data received from a host computer, and relates to a printing apparatus, a program, and a printing method capable of deleting a part of the received print data.

  Conventionally, in a printing apparatus that receives print data generated by a host computer and prints it on a receipt, for the purpose of decoration and sales promotion of the receipt, image data such as a store mark, store name, address, coupon ticket, etc. A printing method is known in which printing is performed by adding to an arbitrary position of received print data. In the case of newly introducing a printing method for printing print data by adding image data, a printing apparatus is disclosed that can print by adding image data without requiring a change in the host computer ( Patent Document 1).

JP 2004-58323 A

  However, in the above printing apparatus, for example, when newly selling store information including the store name and address of the store is printed as image data at the beginning of the receipt, the store information (text data) is added at the top of the print data in the host computer. Is set to print, unless the host computer is changed, the image data of the store information is printed at the top of the receipt, and then the sales information (text data) is printed, The same information is printed twice. Similarly, even if unnecessary print data is included in the received print data, it is impossible to delete the unnecessary print data unless the host computer is changed.

  Therefore, an object of the present invention is to provide a printing apparatus, a program, and a printing method that can freely delete a part of print data received from a host computer without changing the host computer.

  The printing apparatus according to the present invention is a printing apparatus that performs printing on a receipt based on actual print data from which unnecessary data is deleted with respect to print data received from a host computer, and receives print data from the host computer. A deletion line setting unit that sets a deletion line, and a print data deletion unit that deletes print data corresponding to the deletion line set by the deletion line setting unit; Printing means for performing printing on a receipt based on actual print data that has been deleted by the data deletion means.

  The printing method of the present invention is a printing method for printing on a receipt based on actual print data from which unnecessary data is deleted with respect to print data received from a host computer, and receiving the print data from the host computer Delete the print data corresponding to the delete line set by the delete line setting means from the delete line setting process for setting the delete line to be deleted and the print data received in the receive process. A print data deleting step, and a printing step of printing on a receipt based on actual print data that has been deleted by the print data deleting step.

  According to these configurations, printing is performed as actual print data for actually printing the deleted print data, which is partly deleted from the received print data. Therefore, when unnecessary data is included in the received print data, It can be deleted. That is, a part of the received print data can be deleted without changing the host computer. The data of one line here means “data from the head data of a line until reception of a print command or a line feed command for instructing printing of one receipt line”, “data of receipt 1 from the head data of the line” It means “data for the maximum number of characters that can be printed on a line”. In addition, for “bar code, two-dimensional code data” and “graphics (image) data”, one data is made one row.

  In this case, the receiving unit receives the print data in line units, and receives the print data received immediately after the receipt leading end detecting unit detects the leading end of the receipt and the receipt leading end detecting unit detects the leading end of the receipt. It is preferable that the deleted line setting unit is configured to be able to set the number of deleted lines with the first line as a deletion start line.

  According to this configuration, since the print data immediately after detecting the leading edge of the receipt is set as the first line and the first line is set as the deletion start line, when deleting multiple lines of print data including the first line of the receipt, A deleted line can be set with a simple operation. Note that “immediately after detection of the leading edge of the receipt” means any one of “immediately after power-on”, “immediately after paper cut”, or “after clearing the print buffer when an error occurs”.

  Further, in this case, the receiving means receives the print data line by line, and saves the print data in accordance with the order of reception, the receipt trailing edge detection means for detecting the trailing edge of the receipt, and the receipt trailing edge detection. And a final line setting means for setting the print data received immediately before the trailing edge of the receipt is detected as a final line, wherein the deleted line setting means deletes the last line in the stored print data. It is preferable that the number of deleted lines to be deleted retroactively from the deletion start line can be set.

  According to this configuration, the print data immediately after the trailing edge of the receipt is detected is set as the last line, and the last line is set as the deletion start line. Therefore, a plurality of lines of print data including the last line of the receipt are deleted retroactively. In this case, the deleted line can be set with a simpler operation. Note that “immediately before detection of the trailing edge of the receipt” means “immediately before cutting a sheet (immediately after receiving a cut command)”.

  In this case, the image processing apparatus further includes a specific character string storage unit that stores a specific character string that is a character string for specifying a deletion start line, and the deletion line setting unit includes a specific character string in the received print data. It is preferable that the number of deleted lines can be set by setting the next line of the specific character string line, which is a line including the specific character string, as the deletion start line.

  According to this configuration, when a specific character string is included in the received print data, the received print data is set as a specific character string line, and the specific character string line is set as a deletion start line. Therefore, unnecessary print data after the next line can be deleted only by setting the number of lines using a specific character string as a trigger.

  Further, in this case, the specific character string line is deleted by the specific character string line deleting unit and the specific character string line deleting unit that delete the print data corresponding to the specific character string line together with the area corresponding to the specific character string line. It is preferable to further comprise selection means for selecting whether or not to delete.

  According to this configuration, the print data set as the specific character string line can be deleted as unnecessary print data. Furthermore, since it is possible to select whether or not to delete the specific character string row, it is possible to delete the specific character string row as necessary.

  Also, in this case, logo data storage means for storing logo data, which is image data to be added to the print data, and the logo data are inserted in the previous line or the next line of the specific character string line in the print data. It is preferable to further include a logo data insertion means.

  According to this configuration, it is possible to insert logo data as image data in the previous line or the next line of a specific character string line. For example, a specific product name is set as a specific character string, and the product name It is possible to control the corresponding discount coupon to be inserted as the logo data in the previous line or the next line of the specific character string line, and an effective sales promotion service can be realized.

  In this case, the top logo data storage means for storing the top logo data, which is image data to be inserted and printed at the top of the print data, and the top logo data for the top line set by the top line setting means It is preferable to further include a top logo data insertion means that is inserted immediately before.

  According to this configuration, since the store mark, the store name, the address, etc. can be inserted as the top logo data immediately before the first line of the receipt instead of the store name using a general font, a more attractive receipt can be printed. , You can make the store more impressive to customers. Furthermore, it is possible to delete print data (text data) corresponding to top logo data.

  Furthermore, in this case, bottom logo data storage means for storing bottom logo data, which is image data to be inserted and printed at the end of the print data, and bottom logo data for the last line set by the final line setting means. It is preferable to further include bottom logo data insertion means that is inserted immediately after.

  According to this configuration, since a message to the customer, next discount information, etc. can be inserted as bottom logo data immediately after the last line of the receipt, it is possible to print a more attractive receipt and to acquire fixed customers. Effective service can be realized. Furthermore, it is possible to delete print data (text data) corresponding to bottom logo data.

  A program according to the present invention causes a computer to function as each unit in the printing apparatus described in any one of the above.

  According to this configuration, it is possible to provide a program for deleting some unnecessary data from the received print data.

1 is a configuration diagram of a POS system according to an embodiment of the present invention. It is a control block diagram of a printing apparatus. It is a functional block diagram of a printing apparatus. It is a figure which shows a deletion line setting data and a logo setting data edit screen. 6 is a flowchart illustrating overall printing processing of the printing apparatus. 6 is a flowchart illustrating a first line setting process of the printing apparatus. It is a flowchart which shows the specific character string 1st process of a printing apparatus. It is a flowchart which shows the specific character string 2nd process of a printing apparatus. 6 is a flowchart illustrating a final line setting process of the printing apparatus. It is a figure which shows the example of printing of a receipt.

  Hereinafter, embodiments of a printing apparatus, a program, and a printing method of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, a printing apparatus 1 according to the present invention is used in a store such as a supermarket or a convenience store, and in a POS system 10 that issues a receipt based on input information related to product sales input by an operator. The print data generated by the host computer 40 is received and printed on the receipt.

  The host computer 40 is connected to the printing apparatus 1 by wire or wirelessly via an interface. In this embodiment, the host computer 40 is connected to each other via connectors 46 and 53, and is input by a keyboard 43 or a bar code reader 44. Get input information about the product by reading the code. In addition, the credit card or member card of the customer 60 is read by the card reader 45, and information relating to membership such as information relating to credit clearing or a membership number is acquired. Furthermore, it has a display 42 for displaying product information generated based on product data transmitted from a POS server 30 to be described later, and displays the amount of purchase commercial law and the like to the customer 60.

  The POS server 30 has a memory such as a ROM 32 and a RAM 33 in addition to a control device (CPU 31), and processes information stored in the buffer 39 and the like in the RAM 33 according to a control program stored in the ROM 32. In particular, the RAM 33 has a product master composed of a product code block 35, a product name block 36, a price block 37, an inventory block 38, etc., and the CPU 31 determines the product based on the input information transmitted from the host computer 40. Information relating to the product code, product name, and amount is extracted from the master, and product data used for printing on the receipt R and displaying on the display 42 of the host computer 40 is generated.

  The host computer 40 is controlled by a printer driver OLE for Retail POS (hereinafter referred to as OPOS) operating on an OS 41d such as Windows (registered trademark). The OPOS provides a POS application 41a running on the OS 41d with an interface that is not dependent on the model with peripheral devices such as the printing apparatus 1 and the barcode reader 44, and controls corresponding to each device category. An object (CO) 41b and a service object (SO) 41c corresponding to each device model are configured.

  The POS application 41a generates print data for printing on a receipt based on product data and input information transmitted from the POS server 30, and this print data is delivered to the CO 41b for the printing apparatus via the OS 41d. Further, it is delivered from the CO 41b to the SO 41c corresponding to the model of the printing apparatus 1. The SO 41 c processes this print data to generate a print command according to the command specification of the printing apparatus 1 and transmits it to the printing apparatus 1. The OPOS described above is provided to the user as the printer driver 49 in a form in which CO 41b and SO 41c are combined.

  On the other hand, the printing apparatus 1 is a thermal head type receipt printer. In addition to the data receiving unit 100 that receives various control commands and print data from the host computer 40, the transport unit 110, the printing unit 120, the cutting unit 130, and the printing unit 120. And a drive unit 140 that drives the cutting unit 130, a control unit 200 that controls the entire printing apparatus 1, and the like.

Here, the control configuration of the printing apparatus 1 will be described in detail with reference to FIG. As shown in the figure, the printing apparatus 1 includes an interface 51, a data receiving unit 100 that transmits and receives data to and from the host computer 40, and a receipt feeding motor 111 that conveys the receipt R. 110 and a print head 55, and a printing unit 120 that prints various print data on the receipt in synchronization with the conveyance of the receipt R.
Further, the printing apparatus 1 includes a receipt cutter 131 and a cutter motor 132 that drives the receipt cutter 131, a cutting unit 130 that cuts the rear end of the printed receipt R, a feed motor driver 141, a head driver 142, and a cutter motor driver 143. And a drive unit 140 that drives each unit, and a control unit 200 that is connected to each unit and controls the entire printing apparatus 1.

  The control unit 200 includes a CPU 210, a ROM 220, a RAM 230, and an input / output control device (hereinafter referred to as “IOC: Input Output Controller”) 240, which are connected to each other via an internal bus 250. The ROM 220 stores a control program block 221 for storing a control program for the CPU 210 to execute control including printing and deletion of print data to be described later, and control for printing based on the received print data and to delete print data to be described later. A control data block 222 for storing data, various tables, and the like.

  The RAM 230 includes various work area blocks 231 used as flags and the like, a print data block 232 for temporarily storing print data received by the data receiving unit 100, data after unnecessary data is deleted from the received print data, An actual print data block 233 for temporarily storing actual print data including image data to be actually printed on the receipt, and a logo data block for storing a plurality of image data for printing as a logo at an arbitrary position on the receipt R 234, among the plurality of image data stored in the logo data block 234, the setting of the image data to be actually printed on the receipt as a logo, the logo setting data block 235 for storing the setting of the logo insertion position, and the received print data Delete line setting data field that stores the setting value for deleting the deleted line Tsu has click 236, a. The RAM 230 is always backed up so that the stored data is retained even when the power is turned off. Note that the logo data block 234, the logo setting data block 235, and the deleted row setting data block 236 may use a nonvolatile memory.

  In the IOC 240, a logic circuit that complements the functions of the CPU 210 and handles interface signals with various peripheral circuits is configured and configured by a gate array, a custom LSI, or the like. As a result, the IOC 240 fetches the print data and control data received from the host computer 40 as they are or processes them into the internal bus 250 and, in conjunction with the CPU 210, outputs the data and control signals output from the CPU 210 to the internal bus 250. Then, it is output as it is or processed to each unit such as the printing unit 120.

  The CPU 210 inputs various signals and data from each unit in the printing apparatus 1 via the IOC 240 according to the control program in the ROM 220 with the above configuration. Further, various data and data in the RAM 230 are processed based on the various signals and data that are input, and various signals and data are output to each unit in the printing apparatus 1 via the IOC 240 to perform print control.

Here, the control configuration of the printing apparatus 1 will be described in more detail with reference to the functional block diagram of the printing apparatus 1 shown in FIG.
The printing apparatus 1 includes a data receiving unit 100 that receives print data in line units from the host computer 40, a logo data storage unit 91 that stores a plurality of image data for printing as a logo on the receipt R, and a logo data storage. Among the plurality of image data stored in the unit 91, image data that is actually printed on a receipt as a logo, a logo setting data storage unit 92 that stores the setting of the logo insertion position, and a deleted line is deleted from the received print data. And a deleted line setting data storage unit 93 for storing setting values for this purpose. The logo data storage unit 91, the logo setting data storage unit 92, and the deleted line setting data storage unit 93 are configured to be rewritable by the user (operator) as necessary.

In addition, the printing apparatus 1 includes a detection unit 70. After power on, 2. 2. After clearing the buffer when an error occurs Immediately after execution of the previous receipt paper cut, it is determined that the leading edge of the receipt has been detected, and the leading edge flag is set to ON. Further, it is determined that the trailing edge of the receipt has been detected immediately before the sheet is cut (immediately after receiving the cut command).
Furthermore, the printing apparatus 1 includes a data processing unit 80 that performs processing for generating actual print data to be actually printed on the receipt R, excluding unnecessary data corresponding to the set deletion line from the received print data. The actual print data storage unit 94 that temporarily stores the actual print data described above and the printing unit 120 that prints the actual print data on the receipt R are provided.

The data processing unit 80 includes a deletion line setting unit 81 that sets unnecessary data to be deleted from print data as a deletion line. Furthermore, the data processing unit 80 sets the print data received immediately after detecting the leading edge of the receipt as the first line and the print data received immediately before detecting the trailing edge of the receipt as the last line. And last line setting means 83.
Further, the data processing unit 80 inserts one logo as a top logo among a plurality of image data stored in the logo data storage unit 92 immediately before the first row set by the first row setting unit 81. Means 84 and a bottom logo insertion means 85 for inserting one of the plurality of image data stored in the logo data storage unit 91 as a bottom logo immediately after the last line set by the last line setting means 83. ing.

  Further, when the received print data includes the specific character string S stored in the deletion line setting data storage unit 93 as a character string for specifying the deletion start line, the data processing unit 80 specifies the print data. It has a keyword logo insertion means 86 that inserts one image data as a keyword logo among a plurality of image data stored in the logo data storage unit 91 as a character string row and in the previous row or the next row of the specific character string row. ing. In addition to the above, the data processing unit 80 includes a print data deletion unit 87. The print data deletion unit 87 deletes unnecessary data from the received print data based on the setting value stored in the deletion line setting data storage unit 93. Perform the process.

  As described above, the deletion line setting data and the logo setting data are configured to be rewritable by the user (operator) as necessary. Here, the setting method of the deletion line setting data and the logo setting data will be described. The deleted line setting data and the logo setting data are set via an external processing apparatus (not shown) having a keyboard as an input unit and a display as a display unit, which are connected via the interface 51 of the printing apparatus 1. ) Is performed by the user (operator). Note that the host computer 40 may be used instead of the external processing device.

FIG. 4 shows a display screen for setting deleted line setting data and logo setting data. As shown in the deletion line setting screen D1, the deletion line is set by a direct setting method (refer to screen D1: a) in which a deletion deletion line is set by directly specifying the deletion start line and the number of lines, and the first line of the receipt. The first row setting method (see screen D1: b), in which only the number of deleted rows is set as the deletion start row and the deletion row set, and the last row of the receipt as the deletion start row, and the number of deleted rows going back from the last row Final line setting method (refer to screen D1: c) and specific character string line setting method (refer to screen D1: d) for setting a deleted line with reference to a specific character string line And four setting methods are prepared.
The deleted line may be set by all these four setting methods, or the deleted line may be set by only one setting method. In other words, the deleted line can be set by combining any of the four setting methods.

  The direct setting method shown on screen D1: a will be described as an example. When a deletion line is set by directly specifying the deletion start line and the number of lines, the user (operator) checks the check box a-1. Then, a numerical value is selected in the list box a-2 that specifies the deletion start line (6 in the figure), and a numerical value is selected in the list box a-3 that specifies the number of lines (1 in the figure).

  Similarly, when setting the deletion line with the first line as the deletion start line, the user (operator) checks the check box b-1 shown on the screen D1: b and then specifies the number of lines in the list box b- A numerical value is selected in 2 (3 in the figure).

  Similarly, when setting the deletion line with the last line as the deletion start line, the user (operator) checks the check box c-1 shown on the screen D1: c and then specifies the number of lines in the list box c- A numerical value is selected in 2 (1 in the figure).

When setting a deletion line based on a specific character string line, the user (operator) checks the check box d-1 shown on the screen D1: d and then specifies the specific character string for specifying the deletion line. S is directly set in the text box d-2 and set (in this embodiment, the specific character string S is set as “strawberry”). Next, a specific character string next line is set as a deletion start line, and a numerical value is selected in the list box d-3 for specifying the number of lines to be deleted (0 in the figure). In addition, in the numerical value selection in the list boxes a-2, a-3, b-2, and c-2, selection of “0” is normally impossible, but in the list box d-2, a specific character string is selected. In order to make it possible to delete only the row, “0” can be selected.
Next, whether or not to delete the specific character string line is selected by option buttons d-4 and d-5 (not deleted in the figure but selected).

  When the OK button 2 is clicked after the above settings are made, the setting value input in the above procedure is stored in the deleted line setting data block 236 as the latest deleted line setting data. When the cancel button 3 is clicked, the deletion line setting screen is terminated without updating the deletion line setting data. Note that a specification method for directly specifying a plurality of deleted lines may be further added. As a result, even if unnecessary print data is not a continuous line, it can be freely deleted.

  On the other hand, the logo setting screen D2 includes setting items for three types of logos, a top logo, a bottom logo, and a keyword logo. To set the top logo, select whether or not to print the top logo in the check box e-1 shown on screen D2: e (set to print in the figure), and click the reference button e-3 to display. The image data to be printed as the top logo is set from the list (a plurality of image data names stored in the logo data block 234 are displayed; not shown). The set file name of the image data is displayed in the text box e-2 (fire.jpg in the figure).

  Similarly, the bottom logo is set by selecting whether or not to print the bottom logo in the check box f-1 shown on screen D2: f (setting to print in the figure), and clicking the reference button f-3. Image data to be printed as a bottom logo is set from the displayed list (a plurality of image data names stored in the logo data block 234 are displayed; not shown). The set file name of the image data is displayed in the text box f-2. (Thankyou.jpg in the figure).

  Similarly, for setting the keyword logo, select whether or not to print the keyword logo in the check box g-1 shown on screen D2: g (set to print in the figure), and click the reference button g-3. The image data to be printed as a keyword logo is set from the list displayed (a plurality of image data names stored in the logo data block 234 are displayed; not shown) (ichigo.jpg in the figure). For the keyword logo, the insertion position (the previous line or the next line of the specific character string line) is set by option buttons g-4 and g-5 (set to the next line in the figure).

  When the OK button 4 is clicked after the above settings are made, the setting value input in the above procedure is stored in the logo setting data block 235 as the latest logo setting data. When the cancel button 5 is clicked, the logo setting screen is terminated without updating the logo setting data. In the present embodiment, the top logo, the keyword logo, and the bottom logo are configured so that only one image data can be set, but a plurality of these may be selected.

Next, the flow of printing in the printing apparatus 1 of the present invention will be described with reference to the flowcharts of FIGS.
In response to the cut command received from the host computer 40, the printing apparatus 1 performs paper cutting of the previous receipt (S01), and sets the leading edge flag to ON when detecting the leading edge of the receipt (S02). When the print data for the current receipt print is received from the host computer 40 (S03: Yes), it is first determined whether or not the receipt leading edge is detected, that is, whether the leading edge flag is ON or OFF (receipt leading edge detection means). (S04). If the leading edge flag is ON (S04: Yes), the leading line setting process is executed (S05). In addition to immediately after receipt cut (S01), the leading edge flag is turned on immediately after the power is turned on and immediately after the print buffer is cleared when an error occurs.

  FIG. 6 is a flowchart showing the first line setting process. The printing apparatus 1 sets the print data received with the leading edge flag ON as the first line (S25), and sets the line count to 0 (S26). Next, it is determined whether or not it is necessary to print the top logo based on the logo setting data (S27). If printing of the top logo is set (S28: Yes), the top logo data is executed based on the logo setting data. The data is stored in the print data block 233 (S29). Then, the front end flag is turned off (S30), and the next process proceeds. Note that the data is stored in the actual print data block 233 according to the order in which the data is stored.

  Referring to FIG. 5 again, the case where the leading edge flag is OFF (S04: No) and the case where the first line setting process (S05) is completed will be described. First, the row count is incremented (S06). Next, it is determined whether or not the received print data corresponds to a deleted line (S07). Here, only the deleted line set by the direct setting method indicated by a and the first line setting method indicated by b in the deleted line setting screen D1 shown in FIG. The deleted lines set by the final line setting method and the specific character string line setting method shown in c and d are not the deletion line discrimination target at this stage. The printing apparatus 1 can always determine the line number of the received print data by incrementing the line number count. That is, whether or not the deleted line set by the direct setting method shown in a and the first line setting method shown in b corresponds to the deleted line by determining what line the received current data is. Is determined.

  If it corresponds to the deletion line (S07: Yes), the printing apparatus 1 discards the received print data, and returns to a standby state for receiving the next print data. If it does not correspond to the deleted line (S07: No), it is determined whether or not the specific character string S is included in the received print data (S08). If the received print data includes the specific character string S (S08: Yes), the specific character string first process is executed (S09).

  FIG. 7 is a flowchart showing the first specific character string process. If the received print data includes the specific character string S, the printing apparatus 1 first determines the position to insert as the keyword logo based on the logo setting data (S31). When the keyword logo is inserted in the previous line of the specific character string line (S31: previous line), the keyword logo data is stored in the actual print data block 233 based on the logo setting data (S32). When the keyword logo is inserted in the next line of the specific character string line (S31: next line), the logo insertion flag is turned ON (S33).

  Next, the printing apparatus 1 refers to the deleted line setting data, and acquires the number n of deleted lines after the specific character string line and subsequent lines. If the number of deleted lines n is set to 1 or more (S34: Yes), the deletion flag is turned ON (S35). Then, the deleted line setting data is further referenced to determine whether or not to delete the specific character string line (S36). If deletion of the specific character string line is not set (S36: No), the received print data, that is, the specific character string line is stored in the actual print data block 233 (S37). Thereafter, the printing apparatus 1 returns to a standby state for receiving next print data.

  Referring to FIG. 5 again, a case where the received print data does not include the specific character string (S08: No) will be described. If the received print data does not include the specific character string, it is next determined whether or not the logo insertion flag is ON (S10). When the logo insertion flag is ON (S10: Yes), that is, when a keyword logo is inserted in the line following the specific character string line, the keyword logo data is stored in the actual print data block 233 based on the logo setting data (S11). Then, the logo insertion flag is turned OFF (S12).

Next, the printing apparatus 1 determines whether the deletion flag set in the specific character string first process shown in FIG. 7 is ON or OFF (S13). When the deletion flag is ON (S13: Yes), the specific character string second process is executed (S14).
FIG. 8 is a flowchart showing the specific character string second process. If the deletion flag is ON, the number n of deleted lines after the next line of the specific character string acquired in the first process of the specific character string shown in FIG. 7 is updated to a value reduced by one line (S41). If the deleted line number n after the update is 0 (S42: Yes), it is considered that the deletion for the number of deleted lines after the specific character string is completed, and the deletion flag is turned OFF (S43). If the number of deleted lines n after update is not 0 (S42: No), the deletion flag is kept ON to continue deletion for the number of deleted lines after the specific character string. Thereafter, the printing apparatus 1 returns to a standby state for receiving next print data.

  Referring to FIG. 5 again, a case where the deletion flag is not ON (S13: No) will be described. If the deletion flag is not ON, the printing apparatus 1 stores the received print data in the actual print data block 233 (S15), and returns to the standby state for the next print data reception.

  Thereafter, when a cut command for the current receipt is received from the host computer 40 (S16: Yes), the printing apparatus 1 first determines whether the logo insertion flag is ON or OFF (S17). This is because, when a cut command is received immediately after receiving a specific character string row, the logo insertion flag is in an ON state in the case where the keyword logo is set to be inserted in the next row of the specific character string. If the logo insertion flag is ON (S17: Yes), the keyword logo data is stored in the actual print data block 233 based on the logo setting data (S18), and the logo insertion flag is returned to OFF (S19). However, since the specific character string line cannot usually be the last line, this process (S17 to S19) may be omitted. Thereafter, the printing apparatus 1 executes a final line setting process (S20). If the reception from the host computer 40 is neither print data nor a cut command (S16: No), processing corresponding to the received print command is performed in the printing apparatus 1.

  FIG. 9 is a flowchart showing the final line setting process. The printing apparatus 1 determines that the trailing edge of the receipt has been detected by receiving the cut command for the current receipt from the host computer 40 (receipt trailing edge detection means), refers to the actual print data block 233, and lastly saved the print. Data is set as the last line (S51). Next, the deleted row setting data is referred to, and the deleted row number n ′ set with the last row as the deletion start row is acquired. If the number of deleted lines n ′ is set to 1 or more (S52: Yes), the printing apparatus 1 refers to the actual print data block 233 and goes back to the stored actual print data for the number of deleted lines n ′. The print data is deleted (S53). Thereafter, it is determined whether or not bottom logo printing is necessary based on the logo setting data (S54). If printing of the bottom logo is set (S54: Yes), the bottom logo data is converted into an actual print data block based on the logo setting data. It is inserted immediately after the last line of 233 and saved (S55).

  The process after the last line setting process will be described with reference to FIG. 5 again. When finishing the final line setting process (S20), the printing apparatus 1 prints the actual print data stored in the actual print data block 233 (S21). Thereafter, the receipt sheet is cut (S01), and the leading edge flag is turned ON again (S02). This completes the process for one receipt.

  In the above description, the actual print data is stored in the actual print data block 233 until a cut command is received from the host computer 40. However, in order to save memory capacity, the actual print data block 233 is not provided. Printing may be performed for each line. In this case, in the flowchart shown in FIG. 5, the print data is printed at the timing of storing the print data (S15, S25 (S05), S37 (S09)). However, in this case, it is impossible to set the number of deleted lines with the last line as the deletion start line by printing for each line (the final line setting method shown in FIG. 4 D1: c). In this embodiment, each time print data for one line is received, the deleted line is determined and other processes are performed. However, after receiving print data for one receipt (after receiving a cut command), A configuration in which each process such as the deletion of print data corresponding to the deletion line and the logo data insertion process may be performed.

Here, a specific description will be given with reference to the receipt R on which the actual print data is printed. The receipt R shown in FIG. 10 receives the print data shown in the left part of the figure from the host computer 40, and the printing apparatus 1 performs the above-described processing to generate actual print data. The receipt R is printed based on the above.
The top logo “fire.jpg” set on the logo setting screen D2: e shown in FIG. 4 is inserted at the top of the receipt, and the deleted line set on the deleted line setting screen D1: b, that is, the received first line ( The print data on the third line from the first line) has been deleted. Further, the deleted line set on the deleted line setting screen D1: a, that is, the received data on the sixth line is also deleted.

  Further, since the specific character string S “Strawberry” set in the deleted line setting screen D1: d is included in the received print data line 10, the received print data line 10 is a specific character string line. The keyword logo “ichigo.jpg” is inserted in the next line of the specific character string. Further, the data immediately before the cut command reception, that is, the data on the 16th line is the last line, and the data on the 16th line is deleted according to the setting of the deletion line setting screen D1: c. Further, the bottom logo “thankyou.jpg” is inserted at the rear end of the receipt according to the setting of the logo setting screen D2: f.

  As described above, the printing apparatus 1 according to the present invention can delete unnecessary data included in the received print data, so that a receipt that looks good without redundant printing of the same information can be obtained. Can be printed.

  In addition, it is also possible to provide each part (each function) of the printing apparatus 1 shown in the above example as a program. It is also possible to provide the program stored in a storage medium (not shown). Recording media include CD-ROM, flash ROM, memory card (compact flash (registered trademark), smart media (SmartMedia (registered trademark)), memory stick (MEMORY STICK (registered trademark)), etc.), compact disk, magneto-optical disk In addition, a digital versatile disk and a flexible disk can be used.

  DESCRIPTION OF SYMBOLS 1 ... Printing device, 40 ... Host computer, 232 ... Actual print data block, 234 ... Logo data block, 235 ... Logo setting data block, 236 ... Deleted line setting data block, 80 ... Data processing part, 81 ... Deleted line setting means , 82 ... First line setting means, 83 ... Last line setting means, 84 ... Top logo insertion means, 85 ... Bottom logo insertion means, 86 ... Keyword logo insertion means, 87 ... Print data deletion means, R ... Receipt, S ... Specific character Column.

Claims (10)

A printing apparatus that performs printing on a receipt based on actual print data from which unnecessary data is deleted with respect to print data received from a host computer,
Receiving means for receiving the print data from a host computer;
A deletion line setting means for setting a deletion line to be deleted from the received print data;
Print data deleting means for deleting print data corresponding to the deleted line set by the deleted line setting means;
A printing apparatus comprising: a printing unit configured to perform printing on the receipt based on the actual print data which is the print data deleted by the print data deletion unit. The receiving means receives the print data in line units,
Receipt tip detection means for detecting the tip of the receipt;
A leading line setting means for setting the print data received immediately after the receipt leading edge is detected by the receipt leading edge detection means as a leading line;
The printing apparatus according to claim 1, wherein the deleted line setting unit is configured to be able to set the number of deleted lines with the first line as a deletion start line. The receiving means receives the print data in line units, and saves the print data according to the received order;
A receipt trailing edge detecting means for detecting a trailing edge of the receipt;
A final line setting means for setting the print data received immediately before the receipt trailing edge is detected by the receipt trailing edge detection means as a final line;
The deletion line setting means is configured to be able to set the number of deleted lines to be deleted retroactively from the deletion start line, with the last line as the deletion start line in the stored print data. The printing apparatus according to 1. Specific character string storage means for storing a specific character string that is a character string for specifying the deletion start line;
When the received print data includes the specific character string, the deleted line setting unit can set the number of deleted lines with the next line of the specific character string line that is the line including the specific character string as a deletion start line. The printing apparatus according to claim 1, wherein the printing apparatus is configured as follows. Specific character line deletion means for deleting print data corresponding to the specific character string line together with an area corresponding to the specific character string line;
5. The printing apparatus according to claim 4, further comprising selection means for selecting whether or not to delete the specific character string line by the specific character string line deletion means. Logo data storage means for storing logo data, which is image data for printing in addition to the print data,
The printing apparatus according to claim 4, further comprising logo data insertion means for inserting the logo data in a previous line or a next line of the specific character string line in the print data. Top logo data storage means for storing top logo data which is image data to be inserted and printed at the top of the print data;
The printing apparatus according to claim 2, further comprising a top logo data insertion unit that inserts the top logo data immediately before the first row set by the first row setting unit. Bottom logo data storage means for storing bottom logo data which is image data to be inserted and printed at the end of the print data;
The printing apparatus according to claim 3, further comprising bottom logo data insertion means for inserting the bottom logo data immediately after the last line set by the last line setting means.   The program for functioning a computer as each means in the printing apparatus of any one of Claim 1 thru | or 8. A printing method for printing on a receipt based on actual print data from which unnecessary data is deleted with respect to print data received from a host computer,
A receiving step of receiving the print data from a host computer;
A deletion line setting step for setting a deletion line, which is a deletion target of the received print data;
A print data deletion step of deleting print data corresponding to the deletion line set by the deletion line setting means from the print data received in the reception step;
And a printing step of performing printing on the receipt based on the actual print data that has been deleted by the print data deletion step.

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