JPH027092B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printer control system that enables printing in a desired font.

In conventional kanji printers, the font of kanji characters when the power is turned on or when one line of printing starts is usually uniquely determined by each manufacturer. However, some users find it inconvenient to use a typeface that is uniquely defined by the manufacturer.
It was necessary to create a processing program for the main system device to change the font according to an order or command when starting line printing.

The present invention is based on the above considerations, and includes:
A printer device in which there is no need to issue an order or command regarding the font each time a line of printing is started using the processing program of the main system device, and the desired font can be printed by setting the printer device side. The purpose is to provide a control method for Therefore, the printer control method of the present invention includes: a printer control device having a processor and a storage device; a data bus connected to the printer control device; an input port connected to the data bus; and an output port connected to a data bus, the data on the data bus can be sent to the printer mechanism side through the output port, and the data from the printer mechanism side can be sent through the input port. In the printer device, which can be placed on the above-mentioned data bus, a font setting terminal is provided on the input side of the above-mentioned input port to set the type of font of printed characters, and the above-mentioned type is set when the power is turned on or when printing one line starts. Initial font determining processing means is provided in the printer control device for reading status information of the setting terminal and making settings for printing characters in a font designated by the status information, and the initial font processing determining means A frequency conversion circuit is provided which converts the frequency of the dot pulse output from the dot pulse generator according to the generated conversion command signal and inputs the frequency-converted dot pulse to the input port. That is. Hereinafter, the present invention will be explained with reference to the drawings.

Figure 1 shows one of the printer devices used in the present invention.
Example block diagrams, FIGS. 2 and 3 are diagrams for explaining one embodiment of the font setting method according to the present invention, and FIGS. 4 and 5 are diagrams for explaining another embodiment of the font setting method according to the present invention. 6 is a diagram showing the initial font determination routine when the font setting method shown in FIGS. 2 and 3 is adopted. FIG. 7 is a diagram for explaining the relationship between the font and dot pulse. 8
The figure is a diagram explaining the generation of dot pulses.

In Fig. 1, 1 is an input/output control unit, and 2 is an input/output control unit.
RAM, 3 is microprocessor, 4 is ROM,
5 to 7 are data registers, 8 is address register.
decoder, 9 is the output port, 10 is the input port,
11 is a setting terminal, 12 is a line driver, 13
14 is a line receiver, 14 is a print head drive unit,
15 is a carrier motor drive unit, 16 is a sensor,
Reference numeral 17 indicates a printer mechanism section. The input/output control unit 1 performs communication with the host computer, and the RAM 2 stores various data such as print data. Microprocessor 3
executes a microprogram stored in the ROM 4. Various microprograms are stored in the ROM 4, and a character generator is formed therein. Address decoder 8 decodes addresses on the address bus to control output port 9 or input port 10. The output port 9 determines an output terminal to which data should be output in accordance with instructions from the address decoder, and outputs the data from this output terminal.
Input port 10 selects an input terminal according to instructions from the address decoder, and puts data from this input terminal on the data bus. Setting terminal 1
1 is for setting the font of printed characters. The line driver 12 amplifies the signal from the output port 9, and the line receiver 13 amplifies the signal from the sensor 16. The print head drive section 14 drives the print head based on print data, and the carrier motor drive section 15 moves the carrier. The sensor 16 is a timing fence sensor or a page sensor.
It consists of various sensors such as end sensors.

FIGS. 2 and 3 show an embodiment of the font setting method according to the present invention. In Figure 2, 1
2 is a tri-state gate, S1 to S3
indicate the respective terminals. Terminals S1, S2,
The state of S3 is read when the corresponding address decode signal is on, and this state signal is sent onto the data bus via the output terminal of the input port and gate 12. The state of the switch at the setting terminal 11 is read by an initial font determination routine to be described later.

Figure 3 shows terminals S1, S2, and S3 of setting terminal 11.
This shows the relationship between the state of the font and the typeface. terminal S
When 1 is low level (logic "0"), a font with both character pitch and character size of 24/120 inches is selected, and when terminal S2 is low level, character pitch is 24/120 inches and character size is selected. If the terminal S3 is at a low level, a font with a character pitch of 18/120 inches and a character size of 15/120 inches is selected.

FIGS. 4 and 5 show other embodiments of the font setting method according to the present invention. Terminals S1, S2, and S3 in FIG. 4 have functions as shown in FIG. 5. That is, the terminal S1 is a character pitch selection terminal, and when it is at a high level (logic "1"), it selects 24/120.
Select inch spacing, 18/18 when logical “0”
Select 120 inch spacing. The terminal S2 is a character size selection terminal, and when the logic is "1", the character size is 24/120 inches, and when the logic is "0", the character size is 15/120 inches. The terminal S3 is a vertical/horizontal selection terminal, and when the logic is "1", it indicates a vertical character, and when the logic is "0", it designates a horizontal character.

FIG. 6 shows an initial font determination routine when the font setting methods of FIGS. 2 and 3 are used. This initial font determination routine is executed when the power is turned on and when printing one line starts. When the initial font determination routine is executed, it is first checked whether the terminal S1 is at logic "0" or not, and when it is at logic "0", both the character pitch and the character size are set to 24/120 inches. If terminal S1 is not “0”, terminal S
2 is logic "0" or not, and the terminal S
When 2 is logical “0”, the character pitch is 24/
It is set to 120 inches, and the font size is set to 15/120 inches. When the terminal S2 is not "0", the terminal S3 is checked, and when it is "0", the character pitch is set to 18/120 inches, and the character size is set to 15/120 inches. Terminals S1, S2,
If all of S3 are not "0", an error routine is executed. After the character pitch and character size are set, the print routine is executed.

FIG. 7 is a diagram illustrating the relationship between typefaces and dot pulses. In Figure 7 a, the font size is 15/120
Dot pulses for inch characters, FIG. 7b shows dot pulses for character sizes of 24/120 inches. The period t2 is 1.5t1. For example, one character
In the case of a 16 x 16 bit matrix configuration, when the character size is 24/120 inches, the dot pulse interval is 1/80 inch;
At 15/120 inch, the dot pulse interval is 1/120 inch. Timing/Fence/
Assuming that the sensor generates a pulse every 1/120 inch, if this pulse is used as a dot pulse and a print pulse is driven for each dot pulse, a character with a character size of 15/120 inch will be printed. Ru. When printing characters with a character size of 24/120 inches, you can generate two pulses every time the timing sensor generates three pulses, and use these pulses as dot pulses. good.

FIG. 8 is a diagram for explaining the generation of dot pulses, and numeral 13 indicates a pulse frequency conversion circuit. This frequency conversion circuit 13 is present, for example, between the input port 10 and the line receiver 13 in FIG. The conversion command signal is generated based on the font information read by the initial font determination routine, and when the character size is 15/120 inches, the conversion command signal is a pulse from the timing fence sensor. The frequency conversion circuit 13 is instructed to pass through the text, and the character size is changed.
In the case of 24/120 inches, reduce the pulse frequency to 2/3
A command is given to the frequency conversion circuit 13 to multiply the frequency.

As is clear from the above description, according to the present invention, a setting terminal for setting the font is provided in the input port, and the state of the setting terminal is read when the power is turned on and when printing one line starts, and the state of the setting terminal is checked. Since the specified font is used for printing, there is no need to specify the printing font in the processing program of the main unit, and the font can be easily controlled.

[Brief explanation of drawings]

Figure 1 shows one of the printer devices used in the present invention.
Example block diagrams, FIGS. 2 and 3 are diagrams for explaining one embodiment of the font setting method according to the present invention, and FIGS. 4 and 5 are diagrams for explaining another embodiment of the font setting method according to the present invention. 6 is a diagram showing the initial font determination routine when the font setting method shown in FIGS. 2 and 3 is adopted. FIG. 7 is a diagram for explaining the relationship between the font and dot pulse. 8
The figure is a diagram explaining the generation of dot pulses. 1...I/O control unit, 2...RAM, 3...microprocessor, 4...ROM, 5 to 7...data/
Register, 8... Address decoder, 9... Output port, 10... Input port, 11... Setting terminal, 12
...Line driver, 13...Line receiver,
14... Print head drive section, 15... Carrier motor drive section, 16... Sensor, 17... Printer mechanism section.

Claims (1)

[Scope of Claims] 1. A printer control device having a processor and a storage device, a data bus connected to the printer control device, an input port connected to the data bus, and an input port connected to the data bus. and an output port, the data on the data bus can be sent to the printer mechanism side through the output port, and the data from the printer mechanism side can be transmitted onto the data bus through the input port. In printer devices that can now be mounted on printers, a font setting terminal is provided on the input side of the input port to set the font type of printed characters, and the status information of the setting terminal is sent when the power is turned on or when one line of printing starts. The printer control device is provided with an initial font determination processing means for reading and setting for printing characters in a font designated by the status information, and a conversion command signal generated by the initial font determination processing means. Accordingly, the control of a printer device is characterized in that it is provided with a frequency conversion circuit that converts the frequency of the dot pulses output from the dot pulse generator and inputs the frequency-converted dot pulses to the input port. method.