JP2006338412A - Method of installing print data output program, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of installing a print data output program capable of reducing labors and times generated in accompaniment to replacement of a printer. <P>SOLUTION: The present invention relates to an installation method for installing the second print data output program corresponding to the first print data output program, in a computer for storing one or a plurality of the print data output programs including the first print data output program. In the installation method, the print data output programs is installed in the computer, and the print data output programs is stored correlatedly instead of the first print data output program, in identification information correlated with the first print data output program. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a print data output program installation method and program.

  2. Description of the Related Art A printing system that includes a computer that executes various application programs and a printer and that prints out documents, images, and the like created by the various application programs from the printer is generally known. In such a printing system, a predetermined printer is associated with an application program, and settings are made so that printing from the application program is performed by the predetermined printer.

  When the printer is changed to another printer in the printing system as described above, the user installs a program (for example, a printer driver) corresponding to the new printer in the computer and prints from the application program on the new printer. Settings have to be changed so that the printer is changed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a print data output program installation method and program that can reduce the troubles caused by changing the printer.

  In order to solve the above-described problem, a print data output program installation method according to the present invention includes a computer including program storage means for storing one or more print data output programs including a first print data output program. A print data output program installation method for installing a second print data output program corresponding to one print data output program, wherein the computer corresponds to means for executing an application program and the print data output program An identification information storage unit that stores one or more identification information for identifying the print data output program, and a unit that stores at least one of the identification information in association with the application program, The application Print data corresponding to a program is output by a print data output program identified by the identification information associated with the application program, and the print data output program installation method is configured to output the second print data output program as the second print data output program. Instead of the first print data output program, the second print data output program corresponds to the step for storing in the program storage means and the identification information associated with the first print data output program. And an update step for updating the storage contents of the identification information storage means so as to be stored together.

  According to another aspect of the present invention, there is provided a program corresponding to the first print data output program in a computer including program storage means for storing one or a plurality of print data output programs including the first print data output program. The print data output program is installed in the computer, and the computer includes means for executing the application program and identification information for identifying the print data output program in association with the print data output program. One or more identification information storage means for storing, and means for storing at least one of the identification information in association with the application program, wherein print data corresponding to the application program is associated with the application program Before Output by a print data output program identified by the identification information, the program being associated with the step for storing the second print data output program in the program storage means and the first print data output program Update for updating the stored contents of the identification information storage means so that the second print data output program is stored in association with the identification information that has been stored instead of the first print data output program And causing the computer to execute steps.

  An information storage medium according to the present invention is a computer-readable information storage medium storing the above program.

  The present invention relates to a second print data output program corresponding to the first print data output program for a computer including program storage means for storing one or more print data output programs including the first print data output program. Is about the installation of. The computer is associated with means for executing an application program, identification information storage means for storing one or a plurality of identification information for identifying the print data output program in association with the print data output program, and the application program And at least one means for storing the identification information, and print data corresponding to the application program is output by a print data output program identified by the identification information associated with the application program. In the installation, the second print data output program is stored in the program storage unit. The identification information storage means stores the identification information associated with the first print data output program in association with the second print data output program instead of the first print data output program. The stored contents are updated. According to the present invention, when changing the printer to another printer, it is not necessary to change the setting so that printing from the application program is performed by the new printer. Can be reduced.

  In one aspect of the present invention, temporary identification information for identifying the second print data output program is generated, and the second print data output program is associated with the temporary identification information. And storing the identification information stored in the identification information storage unit in association with the first print data output program so as to be stored. An identification information acquisition step for acquiring information, and identification information stored in the identification information storage means in association with the second print data output program is acquired from the temporary identification information by the identification information acquisition step. A step for updating to the identified identification information. “Generating temporary identification information” and “storing the second print data output program and temporary identification information in association with each other” may be performed integrally. It may be performed individually.

  In one embodiment of the present invention, the computer includes one or more interfaces for connecting a printer so as to be communicable, and the identification information storage unit associates the identification information with the one or more interfaces. Information specifying any one of the interfaces is stored, and the updating step includes interface specifying information for acquiring the interface specifying information for specifying an interface to which a printer corresponding to the second print data output program is connected. The identification information storage means so that the interface specifying information acquired by the interface specifying information acquiring step is stored in correspondence with the acquiring step and the identification information associated with the first print data output program. Updating the stored content of the It may be.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing an overall configuration of a printing system according to an embodiment of the present invention. As shown in the figure, the printing system 1 according to the present embodiment includes a host computer 10 (print data output device) and a printer 20.

  As shown in FIG. 1, the host computer 10 includes a control unit 11, a storage unit 12, an input unit 13, a display unit 14, an interface (I / F) 15, and an optical disk reading unit 16. Computer.

  The control unit 11 operates according to an operating system and other programs stored in the storage unit 12 and executes various types of information processing. The storage unit 12 is composed of a computer-readable information storage medium. For example, the storage unit 12 includes a ROM (Read Only Memory), a RAM (Random Access Memory), and a hard disk device. The storage unit 12 stores a program executed by the control unit 11. The storage unit 12 also operates as a work memory that stores various data required in the process of the control unit 11.

  The optical disk reading unit 16 reads a program and data stored on an optical disk (information storage medium) such as a DVD-ROM, for example, according to an instruction from the control unit 11.

  The input unit 13 is a keyboard or a mouse, for example, and inputs data corresponding to a user operation input to the control unit 11. The display unit 14 is a display, for example, and displays information in accordance with instructions input from the control unit 11.

  The interface 15 is an interface for connecting various peripheral devices and information storage media (such as a memory card) to the host computer 10. The interface 15 outputs data input from a peripheral device or the like to the control unit 11. Further, the interface 15 outputs various data to peripheral devices or the like in accordance with instructions input from the control unit 11. The host computer 10 is provided with, for example, one or a plurality of connection ports (ports) conforming to the RS-232C interface standard and one or a plurality of connection ports conforming to the USB (Universal Serial Bus) interface standard. Hereinafter, a connection port conforming to the RS-232C interface standard is referred to as “COM port”, and a connection port conforming to the USB interface standard is referred to as “USB port”.

  The printer 20 is connected to the host computer 10 via the interface 15 so as to be able to exchange data with each other. As shown in FIG. 1, the printer 20 includes a control unit 21, a storage unit 22, an image forming unit 23, and an interface (I / F) 24.

  The control unit 21 controls the entire printer 20. The storage unit 22 includes a ROM and a RAM, and stores various programs and data necessary for printing execution. The interface 24 receives data transmitted from the host computer 10 and outputs it to the control unit 21. The printer 20 is provided with, for example, a COM port or a USB port as the interface 24. The image forming unit 23 generates image data based on data input from the control unit 21, and prints the image data on an image recording medium such as a printing paper.

  For example, the printer 20 stores font image data in the storage unit 22, receives command data (command data indicating a character string) indicating the contents of a document or the like, command data indicating a font type, and the like from the host computer 10. Raster image data is generated based on the command data, and the raster image data is formed on an image recording medium. Further, for example, the printer 20 receives raster image data in a predetermined data format (more precisely, command data indicating coloring information for each pixel constituting the image) from the host computer 10 and receives the raster image data as an image. It is formed on a recording medium.

  Further, for example, the printer 20 is provided with an auto cutter mechanism, receives command data for instructing cutting of the image recording medium from the host computer 10 together with the command data for forming an image on the image recording medium, and stores the image recording medium. Cut in a given manner at a given location.

  In the present embodiment, Windows (registered trademark) manufactured by Microsoft Corporation is installed in the host computer 10 as an operating system. A POS (Point Of Sales) application program (hereinafter referred to as a POS application) is installed in the host computer 10. This POS application has a receipt creation function. The printer 20 is used to print a receipt image created by this POS application.

  Here, the operation of the host computer 10 when a receipt image is printed will be described. FIG. 2 is a diagram for explaining such an operation. Here, as the printer 20, “font image data is stored in the storage unit 22, command data indicating the contents of a document or the like, command data indicating a font type, or the like is received from the host computer 10, and the command data It is assumed that a printer “A” that generates raster image data based on this and forms the raster image data on an image recording medium is connected to “COM port 1” of the host computer 10. In addition, a printer driver (print data output program) corresponding to the printer A is installed in the host computer 10.

  As shown in FIG. 2, when a receipt image print instruction is issued in the POS application 30, metadata representing a receipt image drawing command is generated by a GDI (Graphic Device Interface) program 31. The GDI program 31 is a program provided as a part of the operating system, and the metadata is data independent of the device (printer).

  The metadata generated by the GDI program 31 is supplied to the printer driver 33 via the spooler 32. The host computer 10 stores printer information related to the printer 20, for example, as shown in FIG. As shown in the figure, this printer information includes an “identification name” field, a “printer driver” field, and a “port” field. The “identification name” field stores identification information for identifying a combination of a printer driver and a port. For example, a character string based on the model name of the printer 20 is stored. The “printer driver” field stores information for specifying the printer driver. For example, the printer driver name is stored. The “port” field stores information for specifying the port to which the printer 20 is connected. Note that the example in the figure shows a state in which only the printer A is connected to the host computer 10. When a plurality of printers 20 are connected to the host computer 10, printer information of each of the plurality of printers 20 is stored. In the present embodiment, one “identification name” is associated with the POS application 30, and the metadata generated by the GDI program 31 is “identification name” associated with the POS application 30. Is supplied to the printer driver 33 corresponding to the above.

  In the printer driver 33, the metadata is converted into print data (device-dependent data) corresponding to the printer A. For example, command data for forming a receipt image on the image recording medium in the printer A, command data for controlling the mechanism of the printer A (for example, command data for instructing cutting of the image recording medium), and the like are included in the metadata. Based on.

  The print data generated by the printer driver 33 is temporarily held in the storage unit 12 by the spooler 32. The spooler 32 sequentially transmits print data to the printer 20 while monitoring the state of the printer 20. That is, the print data is output from the port (see FIG. 3) corresponding to the “identification name” associated with the POS application 30 via the port driver 34 and supplied to the printer 20 (printer A).

  Note that print data corresponding to the printer A may be generated by a program other than the printer driver 33. FIG. 4 shows the operation of the host computer 10 in that case. In addition, the same code | symbol is attached | subjected about what performs the operation | movement similar to FIG. 2, and description is abbreviate | omitted.

  As shown in FIG. 4, when a receipt image print instruction is issued in the POS application 30 a, print data corresponding to the printer A is generated by the print data generation program 35. The print data generation program 35 is a program provided as a part of the POS application 30a, for example.

  The print data generated by the print data generation program 35 is supplied to the printer 20 (printer A) via the spooler 32 and the port driver 34 without passing through the printer driver 33. One port is associated with the POS application 30a or the print data generation program 35. For example, one “identification name” (see FIG. 3) is associated with the POS application 30a or the print data generation program 35, so that one port is associated with the POS application 30a or the print data generation program 35. ing. The print data generated by the print data generation program 35 is output from a port associated with the POS application 30a or the print data generation program 35 and supplied to the printer 20 (printer A).

  In the printing system 1 described above, the printer 20 receives from the printer A (second printer) “printer B (first data receiving raster image data in a predetermined data format and forming the raster image data on the image recording medium” In order to change the printer to “printer”, a program for causing the printer B to print the receipt image is required. At this time, when the printer B is made to print from the POS application 30, the printer driver 33 corresponding to the printer B is normally required, and when the printer B is made to print from the POS application 30a, the printer B is made to print. A corresponding print data generation program 35 is normally required. Hereinafter, a technique for enabling the use of the printer B without the need to prepare different programs for the POS applications 30 and 30a in the above case will be described.

  In the printing system 1, when the printer 20 is changed from the printer A to the printer B, there may be a difference between the print output of the printer A and the print output of the printer B. Hereinafter, in the above case, a print output similar to that of the printer A can be obtained in the printer B, and this can be realized without changing the specifications and settings on the POS application side. The technology is also explained.

  First, a procedure executed when the printer 20 connected to the host computer 10 is changed from the printer A to the printer B will be described. Here, it is assumed that the printer B is connected to “USB port 1” of the host computer 10.

  When the printer 20 connected to the host computer 10 is changed to the printer B, the user releases the connection between the host computer 10 and the printer A, and the optical disk (installation disk) storing the printer driver of the printer B is read by the optical disk reading unit. 16 is attached. Thereafter, the user connects the printer B to “USB port 1” of the host computer 10.

  When it is detected that the printer B is connected to “USB port 1” of the host computer 10, the host computer 10 executes an installation process as shown in FIG. In the installation process shown in the figure, S101 to S104 are executed by the operating system. S105 to S107 are realized by reading a predetermined program stored in the installation disk and executing it by the control unit 11.

  As shown in FIG. 5, first, the port to which the printer B is connected is specified (S101). Next, a printer driver corresponding to the printer B is read from the installation disk and installed in the host computer 10 (S102). The printer driver installed here includes a printer driver main body (equivalent to the printer driver 33) that converts the metadata generated by the GDI program 31 into print data corresponding to the printer A, a language monitor program, and print data. And a conversion program. The language monitor program and the print data conversion program are for converting print data corresponding to the printer A into print data corresponding to the printer B. Details will be described later (see FIGS. 9 and 10).

  Next, a temporary identification name is generated (S103). The temporary identification name is generated based on the model name of the printer B, for example. Next, printer information of the printer B is generated and additionally registered (S104). In the “identification name” field of the printer information of the printer B, the temporary identification name generated in S103 is stored. The “printer driver” field stores information indicating the printer driver installed in S102. Further, information indicating the port detected in S101 is stored in the “port” field. As a result, the printer information is updated as shown in FIG. In addition, the process of S103 and the process of S104 may be performed integrally, and may be performed separately.

  Next, an “identification name” corresponding to the printer A is acquired (S105). That is, the contents of the “identification name” field of the printer information of the printer A are acquired. Next, the printer information of the printer A is deleted (S106). Finally, the content of the “identification name” field of the printer information of the printer B is updated to the identification name acquired in S106 (S107). As a result, the printer information is updated as shown in FIG. That is, instead of the printer driver of printer A and the port to which printer A is connected to the “identification name” associated with printer A, the printer driver of printer B and the port to which printer B is connected Are associated with each other. In other words, printer information in which the printer driver of printer B and the port connected to printer B are associated with the “identification name” associated with printer A is stored as printer information of printer B. Will be.

  When the printer B is connected to a port other than the “USB port” of the host computer 10 (for example, “COM port 1”), the procedure described below is executed. That is, the user releases the connection between the host computer 10 and the printer A, and causes the optical disc reading unit 16 to mount an optical disc (install disc) in which the printer driver of the printer B and an installation program for the printer driver are stored. Then, run the installation program. FIG. 8 is a flowchart showing an installation process executed by the installation program.

  As shown in FIG. 8, first, the port to which the printer B is connected is specified (S201). The port to which the printer B is connected may be automatically detected or may be input by the user. Next, a printer driver corresponding to the printer B is installed (S202). The printer driver installed here is the same as the printer driver described in S102 of FIG. Next, the printer information of the printer A is updated (S203). Specifically, the content of the “printer driver” field of the printer information of printer A is updated to indicate the printer driver installed in S202. In addition, the content of the “port” field is updated to indicate the port specified in S201. That is, the printer information is updated as shown in FIG. That is, printer information in which the printer driver of printer B and the port connected to printer B are associated with the “identification name” associated with printer A is generated as printer information of printer B. Will be.

  In S202, only the language monitor program and the print data conversion program may be installed. In this case, only the contents of the “port” field may be updated in S203. For example, this may be done in the host computer 10 where only the POS application 30a is executed. At this time, the port associated with the POS application 30a or the print data generation program 35 may be updated to the port specified in S201.

  According to the installation process described above (see FIG. 5 or FIG. 8), the printer driver of the newly installed printer B and the printer B are connected to the “identification name” originally associated with the printer A. The corresponding port is automatically associated. For this reason, even if the user does not change the setting of the print output destination or the like on the POS application side, the print output of the receipt image is performed by the printer B.

  Next, an operation when a receipt image is printed in the host computer 10 after the installation process (see FIG. 5 or FIG. 8) is executed will be described. FIG. 9 is a diagram for explaining such an operation. 2 and 4 are denoted by the same reference numerals and description thereof is omitted. FIG. 9 shows both the POS application 30 and the POS application 30a. At least one of them is installed in the host computer 10.

  As illustrated in FIG. 9, when a receipt image print instruction is issued in the POS application 30, metadata representing a receipt image drawing command is generated by the GDI program 31. The metadata generated by the GDI program 31 is supplied to the printer driver 33 via the print spooler 32. Here, the printer driver 33 indicates the “printer driver main body” included in the printer driver installed in S102 of FIG. 5 or S202 of FIG. The printer driver 33 converts the metadata into print data corresponding to the printer A. On the other hand, when a receipt image print instruction is issued in the POS application 30 a, print data corresponding to the printer A is generated by the print data generation program 35.

  Print data (internal print data) generated by the printer driver 33 or the print data generation program 35 is supplied to the language monitor program 36 via the spooler 32. Note that the print data generated by the print data generation program 35 may be directly supplied from the print data generation program 35 to the language monitor program 36. The language monitor program 36 monitors whether or not print data has been supplied. When it is detected that the print data has been supplied, the language monitor program 36 supplies the print data to the print data conversion program 37. The language monitor program 36 is also used for receiving status information of the printer 20 supplied from the printer 20 via the port driver 34 and supplying it to a predetermined program (for example, a printer status reference program). It is. Further, the language monitor program 36 and the print data conversion program 37 may be provided as an integral unit or may be provided separately.

  In the print data conversion program 37, the print data generated by the printer driver 33 or the print data generation program 35 is converted into print data corresponding to the printer B. For example, “command data for forming a receipt image on the image recording medium in the printer A” included in the print data generated by the printer driver 33 or the print data generation program 35 is “print data on the image recording medium in the printer B”. It is converted into “command data for forming”. Further, for example, “command data for controlling the mechanism of the printer A” is converted into “command data for similarly controlling the mechanism of the printer B”. The print data generated by the print data conversion program 37 is sent via the language monitor program 36 and the port driver 34 to the port corresponding to the “identification name” associated with the POS application 30 (see FIG. 7) or POS. The data is output from a port associated with the application 30a or the print data generation program 35 and supplied to the printer 20 (printer B).

  Here, functions realized by the print data conversion program 37 will be described in detail.

  FIG. 10 is a functional block diagram mainly showing those related to the present invention among the functional blocks realized in the host computer 10 after the installation process (see FIG. 5 or FIG. 8) is executed. As shown in the figure, the host computer 10 includes an internal print data generation unit 40 and a print data output unit 42.

[1. Internal print data generator]
The internal print data generation unit 40 generates print data corresponding to the printer A as internal print data. The internal print data includes command data for designating at least one of fonts stored in the printer A. The internal print data includes command data (mechanism control data) for controlling the mechanism of the printer A. For example, command data for causing the printer A to cut the image recording medium is included. The internal print data generation unit 40 is realized by the printer driver 33 or the print data generation program 35 being executed by the control unit 11.

  For example, when a receipt image is printed as shown in FIG. 11, command data for instructing the printer A to start printing is generated by the internal print data generation unit 40 and supplied to the print data output unit 42. Thereafter, command data for instructing the font type to the printer A, such as “ESC RS F 0”, for example, is generated and supplied to the print data output unit 42. Further, command data for instructing the printer A on the cut position and cut mode of the image recording medium, such as “ESC d 3”, for example, is generated and supplied to the print data output unit 42. After that, for example, in order to instruct the printer A to print contents and line feeds for each line, such as “'a ″ b ″ c′LF” and “′ d ″ e ″ f′LF”. Command data is sequentially generated and supplied to the print data output unit 42. In addition to the above, for example, command data for instructing the print color is appropriately generated and supplied to the print data output unit 42. Finally, command data for instructing the printer A to end printing is generated and supplied to the print data output unit 42. In the above, “ESC RS F 0” indicates command data for designating the font type of ID “0”. “LF” indicates command data instructing a print line feed. “ESC d 3” indicates command data for instructing to perform a partial cut (cut by leaving one point) by feeding the sheet to the cut position.

[2. Print data output section]
The print data output unit 42 generates and outputs print data corresponding to the printer B based on the internal print data generated by the internal print data generation unit 40. The print data output unit 42 is realized by executing the language monitor program 36 and the print data conversion program 37.

  As shown in FIG. 10, the print data output unit 42 includes an intermediate data generation unit 44, a print data generation unit 46, and a printer holding information storage unit 48.

[2-1. Printer holding information storage unit]
The printer holding information storage unit 48 is realized mainly by the storage unit 12. For example, the printer holding information storage unit 48 (font image data storage unit) stores font image data corresponding to the font stored in the storage unit 22 of the printer A. For example, when the printer A performs printing at a predetermined resolution and stores font image data of a bitmap font corresponding to the resolution, the printer holding information storage unit 48 stores font image data of the same bitmap font. .

  Further, for example, the printer holding information storage unit 48 also stores printer holding information (second printer holding information) based on information other than font image data, which is various information held in the printer A. For example, when the printer A is provided with a dip switch and a memory switch and printing is performed based on the setting contents (print density, etc.) of the dip switch and the memory switch, the dip switch and the memory switch of the printer A Is stored in the printer holding information storage unit 48. Further, for example, when the printer A receives logo image data registration instruction command data, the logo image data is stored in the storage unit 22, and when logo image data print instruction command data is received, the storage unit 22 stores the logo image data. When the stored logo image data is formed on the image recording medium, the logo image data held in the printer A is stored in the printer holding information storage unit 48.

  Note that the installation process (see FIG. 5 or FIG. 8) is executed in a state where the printer A is connected, and in the installation process, various information held in the printer A is automatically acquired, and the printer holding information storage is performed. It may be written in the part 48.

  Further, the logo image data may be registered in the printer holding information storage unit 48 in the same manner as when the user registers the logo image data in the printer A. That is, the internal print data generation unit 40 may generate registration instruction command data for logo image data. The print data output unit 42 (intermediate data generation unit 44) may store the logo image data in the printer holding information storage unit 48 when the registration instruction command data is received.

  In addition, for example, the printer holding information storage unit 48 stores printer holding information (first printer holding information) based on various information held in the printer B. For example, data indicating the setting contents of the DIP switch and memory switch of the printer B is stored. The printer holding information storage unit 48 may automatically acquire various types of information held in the printer B from the printer B at a predetermined timing and store the printer holding information related to the printer B.

[2-2. Intermediate data generator]
The intermediate data generation unit 44 generates intermediate data based on the internal print data generated by the internal print data generation unit 40. More specifically, the intermediate data generation unit 44 stores the internal print data generated by the internal print data generation unit 40, the font image data stored in the printer holding information storage unit 48, and the printer holding information storage unit 48. Raster image data of a receipt image to be printed is generated based on the stored printer holding information regarding the printer A. The intermediate data generation unit 44 generates intermediate control data indicating the control content of the command data in a predetermined format for at least part of the command data included in the internal print data generated by the internal print data generation unit 40. To do.

  Specifically, the intermediate data generation unit 44 interprets command data sequentially supplied from the internal print data generation unit 40, and generates raster image data and intermediate control data. For example, when the command data for instructing the font type to the printer A is received, the intermediate data generation unit 44 generates intermediate control data such as “Font =. For example, when the intermediate data generation unit 44 receives command data indicating a cut command for the image recording medium, the intermediate data generation unit 44 outputs intermediate control data such as “Feed to cutter = True; Cut percentage = 50%; Generate. Further, for example, when the intermediate data generation unit 44 receives command data for instructing the printer A to print contents and print line breaks for each line, the intermediate data generation unit 44 generates raster image data for each line. The raster image data is generated based on, for example, intermediate control data relating to the font type, font image data stored in the printer holding information storage unit 48, and printer holding information (eg, print density) relating to the printer A. For example, when the intermediate data generation unit 44 receives the print instruction command data for the logo image data, the intermediate data generation unit 44 reads the logo image data from the printer holding information storage unit 48 and generates raster image data based on the logo image data. Intermediate data (raster image data and intermediate control data) generated by the intermediate data generation unit 44 is sequentially supplied to the print data generation unit 46.

[2-3. Print data generator]
The print data generation unit 46 generates print data corresponding to the printer B based on the intermediate data generated by the intermediate data generation unit 44. In addition, the print data generation unit 46 generates print data based on the printer holding information stored in the first printer holding information storage unit 48. More specifically, the print data generation unit 46 generates command data for causing the printer B to form the raster image data generated by the intermediate data generation unit 44 on the image recording medium. In other words, command data indicating the coloring information for each pixel constituting the image in a data format corresponding to the printer B is generated. The print control data generation unit 46 generates command data for causing the printer B to control the content indicated by the intermediate control data generated by the intermediate data generation unit 44.

  Specifically, the print data generation unit 46 generates command data for instructing the printer B to start printing, such as “ESC * r A”. Further, for example, command data for causing the printer B to cut the image recording medium at the cutting position and cutting mode indicated in the intermediate control data is generated. For example, command data for sending the paper to the cutting position and causing the printer B to perform partial cutting, such as “¥ x1bd3”, is generated. Further, for example, when the print data generation unit 46 receives raster image data from the intermediate data generation unit 44, a command for instructing the printer B to color information of each pixel for each dot row based on the raster image data Generate data sequentially. For example, command data such as “b ¥ x25 ¥ x01...” Is generated for each dot row. Finally, the print data generation unit 46 generates command data for instructing the printer B to end printing, such as “ESC * r B”. The command data sequentially generated by the print data generation unit 46 is sequentially output as print data from the port (USB port 1) associated with the POS application and transmitted to the printer 20 (printer B).

  In the printer 20 (printer B), command data sequentially transmitted from the print data output unit 42 is received and interpreted, and in accordance with the command data, a receipt image is formed on the image recording medium, and the image recording medium is cut. Is done.

  As described above, in the printing system 1 according to the present embodiment, “a command that stores font data in the storage unit 22 and includes data indicating the content of a document, data indicating a font type, and the like. Data is received, raster image data is generated based on these data, and print data corresponding to the printer “A” that forms the raster image data on an image recording medium is first generated. The printing system 1 stores information (font image data, dip switch and memory switch settings, etc.) held in the printer A, and is based on the information and print data corresponding to the printer A. Thus, raster image data is generated. That is, raster image data similar to the raster image data generated when the printer A receives similar print data is generated in the host computer 10. Then, print data for forming the raster image data on the image recording medium in the printer B is generated and output to the printer B. Therefore, according to the printing system 1, it is possible to reproduce the same print output from the printer A as the print output from the printer B. For example, even when the printer B is a cheaper printer (such as a GDI printer) than the printer A, the printer B can obtain a print output equivalent to the printer A. That is, according to the printing system 1, a relatively inexpensive printer can realize a function equivalent to the printing function (printing function) of a more expensive printer.

  In the printing system 1, the above reproduction is realized by the additionally installed language monitor program 36 and the print data conversion program 37. Therefore, according to the printing system 1, the above reproduction can be realized without changing the POS applications 30 and 30a. In order to realize the above reproduction, it is not necessary to prepare a different program for each POS application 30, 30a.

  Further, in the printing system 1, when converting print data corresponding to one printer (printer A) into print data corresponding to another printer (printer B), predetermined data is obtained from the print data corresponding to the one printer. After the intermediate data in the format is once generated, print data corresponding to the other printer is generated from the intermediate data. For example, when the change (replacement) of the printer can be performed between a plurality of printers, when the print data corresponding to one printer is directly converted into the print data corresponding to another printer, the print data for each combination of printers It is necessary to prepare a conversion module. On the other hand, in the present embodiment, it is sufficient to prepare a conversion module between intermediate data for each printer. For example, even when provision of a printer with a new specification is started, it is sufficient to prepare a conversion module between print data and intermediate data corresponding to the new printer. That is, it is not necessary to prepare a print data conversion module for each existing printer.

  The present invention is not limited to the embodiment described above.

  For example, the operating system executed on the host computer 10 is not limited to Microsoft Windows (registered trademark). Further, the applications executed on the host computer 10 are not limited to the POS applications 30 and 30a. That is, the print target in the printer 20 is not limited to the receipt image generated by the POS applications 30 and 30a, but may be a document or an image generated by another application.

  Further, for example, in the above description, the host computer 10 and the printer 20 are described as being connected via a serial cable or a USB cable. However, the host computer 10 and the printer 20 are connected to a communication network such as a LAN (Local Area Network). It is also possible to establish communication connection via the network. In this case, the interfaces 15 and 24 may be configured as communication interfaces for connecting to a communication network.

  Further, for example, the printer driver installed in S102 of FIG. 5 or S202 of FIG. 8 includes not only a print data conversion program from printer A to printer B but also a print data conversion program from printer A to a printer other than printer B. May be included. In this case, information indicating which conversion program is used may be stored in the storage unit 12 (hard disk device), and print data conversion may be executed by the conversion program indicated by the information.

  For example, a plurality of types of print data conversion programs may be stored in the installation disk. In this case, in the installation process (see FIGS. 5 and 8), the type (model) of the printer before and after the change is input by the user, or is automatically acquired, and printing corresponding to the printer before and after the change is performed. The data conversion program may be installed in the host computer 10.

  Further, for example, the internal print data generation unit 40 and the print data output unit 42 may be realized by a program called by a name other than “printer driver”. The print data output unit 42 may be realized by a program called by a name other than the “language monitor program” (for example, “port emulator”).

1 is a diagram illustrating an overall configuration of a printing system according to an embodiment of the present invention. It is a figure for demonstrating operation | movement of a host computer. FIG. 4 is a diagram illustrating an example of printer information. It is a figure for demonstrating operation | movement of a host computer. It is a flowchart which shows an example of an installation process. FIG. 4 is a diagram illustrating an example of printer information. FIG. 4 is a diagram illustrating an example of printer information. It is a flowchart which shows another example of an installation process. It is a figure for demonstrating operation | movement of a host computer. 1 is a functional block diagram of a printing system according to an embodiment of the present invention. It is a figure which shows an example of a receipt image.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Printing system, 10 Host computer, 11 Control part, 12 Storage part, 13 Input part, 14 Display part, 15 Interface, 16 Optical disk reading part, 20 Printer, 21 Control part, 22 Storage part, 23 Image formation part, 24 interface 30, 30a POS application, 31 GDI program, 32 spooler, 33 printer driver, 34 port driver, 35 print data generation program, 36 language monitor program, 37 print data conversion program, 40 internal print data generation unit, 42 print data output , 44 Intermediate data generation unit, 46 Print data generation unit, 48 Printer holding information storage unit.

Claims (4)

To install a second print data output program corresponding to the first print data output program in a computer including program storage means for storing one or more print data output programs including the first print data output program Print data output program installation method,
The computer includes: means for executing an application program; identification information storage means for storing one or a plurality of identification information for identifying the print data output program in association with the print data output program; and the application program Means for storing at least one piece of identification information in association with each other, and printing data corresponding to the application program is output by a print data output program identified by the identification information associated with the application program Let
The print data output program installation method includes:
Storing the second print data output program in the program storage means;
The identification information is stored such that the identification information associated with the first print data output program is stored in association with the second print data output program instead of the first print data output program. An update step for updating the storage content of the storage means,
A print data output program installation method. A print data output program installation method according to claim 1,
The identification information is generated so that temporary identification information for identifying the second print data output program is generated, and the second print data output program and the temporary identification information are stored in association with each other. Including the step of updating the stored contents of the storage means;
The updating step includes
An identification information acquisition step for acquiring identification information stored in the identification information storage means in association with the first print data output program;
Updating the identification information stored in the identification information storage means in association with the second print data output program from the temporary identification information to the identification information acquired by the identification information acquisition step; including,
A print data output program installation method. A print data output program installation method according to claim 1 or 2,
The computer includes one or more interfaces for communicatively connecting a printer;
In the identification information storage means, information specifying either one or the plurality of interfaces is stored in association with the identification information,
The updating step includes
An interface specifying information acquisition step for acquiring the interface specifying information for specifying an interface to which a printer corresponding to the second print data output program is connected;
The storage content of the identification information storage means is stored so that the interface identification information acquired in the interface identification information acquisition step is stored in association with the identification information associated with the first print data output program. Including steps for updating,
A print data output program installation method. To install a second print data output program corresponding to the first print data output program in a computer including program storage means for storing one or more print data output programs including the first print data output program The program of
The computer includes: means for executing an application program; identification information storage means for storing one or a plurality of identification information for identifying the print data output program in association with the print data output program; and the application program Means for storing at least one piece of identification information in association with each other, and printing data corresponding to the application program is output by a print data output program identified by the identification information associated with the application program Let
The program
Storing the second print data output program in the program storage means;
The identification information is stored such that the identification information associated with the first print data output program is stored in association with the second print data output program instead of the first print data output program. Updating the storage content of the storage means, and causing the computer to execute the update step.
A program characterized by that.

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