JPS5922134A - Printer device - Google Patents

Abstract

PURPOSE:To print characters different in font on one printer, by specifying addresses of a storage part stored with >=2 kinds of print font data by a signal from a print font switching part according to mode information. CONSTITUTION:The print data processing part 3 of a printer device 2 outputs a command request signal to a CPU1 and interprets commands supplied from the CPU1 to output the mode information to a print font switching part 4 and print data codes to an address specifying part 6. The switching part 4 outputs a print font switching signal corresponding to the mode information to the specifying part 6. The specifying part 6 uses the switching signal and print data code to specify an address of the print data storage part 5. The storage part 5 holds >=2 kinds of font data and outputs print data read out of the specified address to a latch 7. The latch 7 outputs the fetched print data by a data latch signal from the processing part 3 to a printer mechanism 8 through the processing part 3. The mechanism 8 performs printing on the basis of the data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in a printer device, and more particularly, to an improvement in a printer device that operates with commands supplied from a CPU.

[Technical background of the invention]

Generally, a printer device as described above has a storage section, and in this storage section, character codes are used as addresses, and print data corresponding to each character code is stored. When such a printer device is supplied with a command containing the character code of the character to be printed from the CPU, it uses the character code as an address to read out the print data stored in the storage unit and print it. .

[Problems with background technology]

By the way, when printing characters in various fonts using such a printer device, conventionally, a plurality of printer devices, each containing print data of one type of font, are connected and used, or one printer is used. Even if you use a printer device that has multiple types of 7-ont print data built-in, it is necessary to change the contents of the command, so if the fonts are different even if the characters are the same, programs must be created for each character with a different font. I had to.

[Purpose of the invention]

The present invention has been made in view of the above drawbacks, and its purpose is to provide a printer device that can print characters in different fonts without changing the contents of commands.

[Summary of the invention]

Therefore, the present invention provides a print data processing unit that interprets a command output from a CPU, separates and outputs mode information included in this command, and a print data code corresponding to the command, and a When mode information is supplied from the printing data processing section, a printing font switching section that outputs a predetermined printing font switching signal corresponding to the mode; A printer device has been created that has an address designation section that specifies the address of a print data storage section based on a print data code supplied from a data processing section and a print font switching signal supplied from a print font switching section.

[Embodiments of the invention]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of this embodiment. In the figure, 1 is the CPU, 2
(The part surrounded by the dotted line) is the printer device of the present invention. As shown in the figure, this printer device includes a print data processing section 3, a print font switching section 4, a print data storage section 5. It consists of an addressing section 6, a latch 7, and a printer mechanism 8.

The CPUI connects the printer device 2 via the data line 1o.
It outputs commands to the print data processing section 3 of the printer to control the printer device.

The print data processing section 3 is a circuit that outputs a command request signal to the CPUI via the signal line 11, and outputs necessary signals or data to each section within the printer device 2 based on the command supplied from the CPUI.

The printing font switching section 4 is a circuit that outputs a predetermined printing font switching signal to the address specifying section 6 via the signal line 13 in accordance with the mode information supplied from the printing data processing section 3 via the signal line 12. be. This printing font switching unit 4 stores information on a mode corresponding to a predetermined printing font set from the outside in advance, and is configured to output a printing font switching signal according to the supplied mode information. has been done.

The print data storage unit 5 is a memory that stores print data of a plurality of 71 (print fonts). In this embodiment, the print data storage unit 5 stores print data of standard character fonts and print characters by OCR. 0CR-B for reading
It is assumed that the print data of the font is held. In this print data storage section 5, the print data is 7
It is stored separately for each ont. However, if the characters are the same, even if the fonts are different, they are assumed to have the same print data code.

The address designation unit 6 receives a print font switching signal supplied from the print font selection unit 4 via the signal line 13,
This circuit outputs the address of the print data storage section 5 via the data line 15 based on the print data code supplied from the print data processing section 3 via the data line 14 .

The latch 7 receives the print data read from the print data storage section 5 by valving the data line 16, and receives the print data by a data latch signal supplied from the print data processing section 3 via the signal line 17. This circuit outputs the data to the print data processing section 3 via the data line 18.

The printer mechanism 8 performs printing based on print data supplied from the print data processing section 3 via the data line 19.

FIG. 2 is an example of a command output from the PUI to the printer device 2. A in the figure is an instruction code for instructing printing in the operation section. C is a 2-byte code of Kanji. Mode 1 shown in B means that [the following data code is a 2-byte code of Kanji characters]. E is a 1-byte code of kana alphanumeric characters. Mode 2 shown in D
This means that ``the following data code is a 1-byte code of kana alphanumeric characters''. The operation of the printer device of the present invention will be explained below based on this command.

In this embodiment, the print font switching section 4 operates in mode 1.
When the information of mode 2 is supplied, the ``specify standard character font'' signal is output, and when the information of mode 2 is supplied (1, the ``specify ocg-87 ont'' signal is output. Assume that it is set in advance.

First, the print data processing section 3 outputs a command request signal to the CPUI via the signal line 11. The CPU, which receives this command request signal, outputs a command having the contents shown in FIG. 2 to the print data processing section 3 via the data line 10. When this command is supplied, the print data processing section 3 uses the operation section shown in FIG. The font is output to the print font switching section 4 via the print font switching section 4. The print font switching section 4 supplied with this mode 1 outputs a signal "specify standard font" corresponding to mode 1 to the address specifying section 6 via the signal line/13. At this time, the print data processing section 3
outputs the print data code for the first character in mode 1 in the command to the address designator 6 via the data line 14. Therefore, the address specifying section 6 supplied with these signals and the print data code specifies, via the data line 15, the address of the print data of the Chinese character to be printed in the print data storage section 5. Then, the print data of Chinese characters read from the print data storage section 5 is taken into the latch 7 via the data line 16. In this way, the print data taken into the latch 7 is
A data latch signal is output from the print data processing section 3 via the signal line 17 at a predetermined timing, and the data is output to the print data processing section 3 via the cheater line 18 . This print data is converted into a form suitable for the printer mechanism section 8 in the print data processing section 3 and output to the printer mechanism section 8 via the data line 19.

Then, the printer mechanism section 8 performs printing based on the data supplied from the print data processing section 3.

In this way, the print data processing section 3 that has completed the processing for the first print data code in mode 1 starts processing for the second print data code. In this case, since the mode is the same as the first print data code processed previously, there is no change in the print font switching unit 4.

Therefore, when the print data processing section 3 outputs the print data code to the address designation section 6 via the data line 14, the address designation section 6 has already sent the address of the standard character font to the print data storage section 5. The state is such that it specifies. In this way, the second
The print data of the kanji character is taken into the latch 7. Thereafter, it is processed in the same manner as the previously processed first print data code. In this way, if a Kanji print data code follows the C part of the command shown in FIG. 2, these are sequentially processed in the same way.

Next, the print data processing section 3 outputs part D of the command shown in FIG. This mode 2
The print font switching unit 4 that has been supplied with this outputs a signal “Specify OCR-B font” corresponding to mode 2 to the address designation unit 6 via the signal line 13. At this time, the print data processing unit 3 converts the print data code for the first character in mode 2 in the command to the data line 1.
4 to the address designation section 6. Therefore,
The address specifying section 6 supplied with these signals and the print data code specifies, via the data line 15, the address of the print data of the 0CR-B font of kana alphanumeric characters to be printed in the print data storage section 5. Then, 0CR of kana alphanumeric characters read from the print data storage unit 5
-13 font print data is taken into latch 7 via data line 16. The subsequent processing is the same as in the case where the kanji print data described above is processed.

In this way, according to this embodiment, when a command as shown in FIG. 2 is supplied to the printer device, first kanji are printed, and then kana alphanumeric characters of the 0CR-B font are printed. become.

〔Effect of the invention〕

As explained above, according to the printer device of the present invention,
If you set the print font switching section in advance so that when data of a predetermined mode is supplied, it outputs a signal to switch to an arbitrary font according to this, the CPU
Characters in any font can be printed with one machine without making any changes to the contents of commands to be supplied from the printer.

[Brief explanation of drawings]

FIG. 1 shows a printer device of the present invention and a CP that controls it.
Figure 2 is a conceptual diagram showing an example of commands used in this embodiment.

Claims (1)

[Scope of Claims] In a printer device that operates according to commands output from a CPU, the commands output from the CPU are interpreted, and mode information included in the command is separated from the print data code corresponding thereto. a print data processing unit that outputs the print data, a print data storage unit that holds print data of two or more types of print fonts, and a print data storage unit that holds print data of two or more types of print fonts; a print font switching section that outputs a predetermined printing font switching signal; a printing data code supplied from the printing data processing section; and a printing font switching signal supplied from the printing font switching section; 1. A printer device comprising: an address designation section for designating an address of the printer.