JPH0257374A - Printer printing control system - Google Patents

Abstract

PURPOSE:To shorten a printing time and to simplify a control program by decelerating the printing speed of a head to print one line by one movement of the head when a high duty character is detected by a high duty detector. CONSTITUTION:Bits in a printing buffer 3 are added all for one line by a program in a control memory 2 by a high duty detector 6. If 30% or more of duty is detected, it is set to a high duty mode. Then, a third control clock generator 10 generates a control clock to decelerate the printing speed, thereby to decelerate the speed by driving a space motor 8, thereby reducing the substantial duty at a head pin fire interval by decelerating the speed to print one line by one movement of a head 5. Since one line can be printed by the one movement of the head 5, printing time can be shortened as compared with a normal three dividing printings.

Description

[Detailed Description of the Invention] [Summary] The present invention aims to provide a printer printing control method for a bank passbook printer device 6, etc., which can shorten the printing time and also has a simple control program. , a control CPU, a print buffer having one line of print information, a print control register that controls firing of the head pin of the head, a high duty detection circuit that detects one line of high duty characters, and a high duty character that performs high duty characters. a control clock generation circuit that generates a control clock for controlling a space motor, and when the high duty detection circuit detects a high duty character, the control clock generation circuit controls the printing speed of the head by the space motor. [Field of Industrial Application] The present invention relates to a printing control system for printers such as bank passbook printers.

Generally, printing of high-duty characters in a printer device is performed by printing in three parts, but printing in three parts requires moving the head five times, and it takes processing time to print one line.

Therefore, it has been desired to shorten the printing time.

[Prior art] In conventional printer devices, printing of high duty characters with a large proportion of black dots occupying the printing space takes 3
It was printed in parts. The reason why such three-division printing is performed is that if high-duty characters are printed at high speed by one head movement without dividing, a large current must be passed and the head will be damaged.

[Problems to be Solved by the Invention] However, in such conventional printing methods, when printing high-duty characters, printing is performed in three parts, so the head must be moved five times, and one line cannot be printed. There was a problem in that it took a long time to print.

Another problem is that the processing required to print one line becomes large and the control program becomes complicated.

The present invention has been made in view of these conventional problems, and an object of the present invention is to provide a printer printing control method that can shorten printing time and has a simple control program.

[Means to solve the problem] FIG. 1 is a diagram explaining the principle of the present invention.

In FIG. 1, 1 is a control CPU, 3 is a print buffer that has one line of print information, 4 is a print control register that controls firing of the head pin of head 5, and 6 is a high duty detection that detects one line of high duty characters. The circuit 10 is a control clock generating circuit that generates a control clock for controlling the space tanabata for high duty printing.

[Function] In the present invention, when the high duty detection circuit detects a high duty character, the control clock generation circuit slows down the print speed of the head by increasing the space of the control clock that controls the space motor. By increasing the head bin fire interval, the actual duty is reduced, and one line of printing is performed with one head movement.

Therefore, printing time can be shortened compared to normal three-part printing.

Furthermore, since the head only needs to be moved once, the control program can be simplified.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 2 is a diagram showing a control device for implementing the present invention.

In FIG. 2, 1 is a control CPU, 2 is a control memory, and the control memory 2 stores a control program. Reference numeral 3 denotes a printing pad 7, in which printing information for printing one line in the printing buffer 3 is stored.

4 is a print 1iIJ control register, and the print control register 4 controls the firing of the head pin of the head 5 based on print information in the print buffer 3.

The head 5 is connected to the print control register 3, moves in the left-right direction, and prints one line on a bankbook or the like via a ribbon by driving a head pin.

6 is a high duty detection circuit, and the high duty detection circuit 6 calculates the duty by adding all the bits in the print buffer 3 for one line, and when the duty is 30, for example.
% or more, the high duty mode is activated. 7 is a first control clock generation circuit;
A control clock generation circuit 7 generates a control clock for controlling a space motor 8 for printing ANK characters (katakana, hiragana, alphabetic characters, numbers).

9 is a second control clock generation circuit, and the second control clock generation circuit 9 generates a control C1 clock for controlling the space motor 8 for printing Chinese characters.

10 is a third control clock generation circuit (control clock generation circuit), and the third control clock generation circuit 10 generates a control clock for controlling the space motor 8 for printing high duty characters. This third control clock generation circuit 10 is connected to the first control clock generation circuit 10. Second control clock generation circuit 7
, 9, a control clock is generated that makes the printing speed slower than that of the control clock. That is, by increasing the speed detection timer value of the space motor 8, the low speed mode is set.

11 is a selector which selects each output for the first to third control clock generation circuits 7, 9 and 10 and supplies the selected control clock to the space motor 8. The space motor 8 moves the head 5 in the left-right direction at a selected printing speed.

Next, a printing method for high duty characters will be explained.

When the high duty detection circuit 6 detects that the duty is 30% or more by adding the bits in the print buffer 3 for one line using the RAM in the memory 2 for vJtll, the high duty mode is set. .

The third control clock generation circuit 10 generates a control clock that slows down the printing speed by detecting a high duty, and drives the space motor 8 with the control clock. Move one line to print one line. That is, one line of printing is performed with one movement of the head 5 by reducing the actual duty by increasing the head pin firing interval by slowing down the printing speed.

In this way, one line of printing can be performed by one movement of the head 5, so the printing time can be shortened compared to normal three-division printing.

For example, even if the printing speed is reduced to one-third, the acceleration, stopping, and turning operations of the head 5 are eliminated, so that the printing time can be shortened by that amount.

Furthermore, since the head 5 only needs to be moved once, the control program can be simplified.

Note that since the printing speed is made slow, there is no need to instantaneously flow a large current, and there is no risk of damage to the head 5.

Furthermore, in the case of printing ANK characters and Kanji characters other than high-duty characters, printing can be performed at a normal printing speed.

[Effects of the Invention] As explained above, according to the present invention, when a high-duty character is detected, the printing speed is slowed down so that one line is printed with one head movement. Printing time can be shortened compared to printing.

Furthermore, since the head only needs to be moved once, the control program can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a diagram explaining the principle of the present invention, and FIG. 2 is a diagram showing a control device for implementing the present invention. In the figure: 1... Control CPU. 2... Control memory, 3... Print buffer, 4... Print control register, 5... Head, 6... High duty detection circuit, 7... First control clock generation circuit, 8 ...Space motor, 9...Second control clock generation circuit, 10...Third control clock generation circuit (control clock generation circuit), 11...Selector. &β1 Oshi Kutsuzuki〔a Fig. 1 Participation in the head of the figure

Claims (1)

[Claims] A control CPU (1), a print buffer (3) that has one line of print information, a print control register (4) that controls the firing of the head pin of the head (5), and a high duty register that detects one line of high duty characters. A detection circuit (6) and a control clock generation circuit (1) that generates a control clock to control the space motor for high-duty printing.
0), when the high-duty detection circuit (6) detects a high-duty character, the control clock generation circuit (10) slows down the printing speed of the head (5) by the space motor (8). A printer printing control system characterized in that one line of printing is performed by one movement of the head.