JPS59111861A - Control system for printing - Google Patents

Abstract

PURPOSE:To perform lap-printing with good efficiency by a method in which a mark and letter code are stored in lapped manner in a printing buffer according to a control code transmitted at the same time and then they are sent out. CONSTITUTION:When a mark code S and a letter code CH are printed in a lapped manner, said codes in a memory 4 are sent with a control code C to a controller 1 through a processer 3. Through a buffer 6 and a letter generator 7, corresponding dot-pattern signals Pa and Po are generated, the control code C is detected in a discriminator 5, lapped information of Pa dnd Po is stored in the printing buffer 8, and then lapped mark of the mark code S and the letter code CH is printed on a paper 9 by the printer 2. Although the displacement amount indicating data on the control code S is zero in the foregoing example, if the value of a desired integer other than zero is used with the mark code S (or letter code CH), Gothic type printing (large latter) can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a printing control method for overlapping printing in a dot printer.

(b) Between the prior art and the prior art In four-point printers, when Gothic (bold) type printing is required, a method is used in which characters are printed twice within the same line, shifted laterally.

A similar method is used in line buffer type serial printers, and this conventional method has the disadvantage that printing efficiency decreases because the same line is printed twice when overprinting. Ta.

(C1 Purpose of the Invention The present invention was made to solve the above-mentioned drawbacks,
The purpose is to provide a printing control method that improves printing efficiency.

(d) Structure of the Invention The present invention provides a printing system in which a dot printer having a print buffer and a printing section is connected to a control device.
Providing the control device with means for transmitting printing information and a control code specifying overlapping printing or staggered folding of the printing information, and means for converting the printing information into printing data;
The dot printer is provided with a discriminating means for discriminating the control code and a means for storing the print data in the print buffer based on the control code, and when the dot printer receives the print information and the control code, the print data is After receiving the print data in which the information has been converted to the address of the print buffer corresponding to the print position specified by the control code of the print buffer, the data in the print buffer is output from the print section. This is a printing control method whose main feature is to As described above, in the present invention, when printing characters on the same line, the print button data for wholesale printing is formed in the print buffer in advance, and the print button data in the print buffer (el) of the invention is provided. EXAMPLE Hereinafter, the present invention will be explained with reference to the drawings.The drawings are block diagrams illustrating one embodiment of the present invention.

In the drawing, the dot printer is composed of a control section 1 and a printing section 2. When printing the top of the character code CH in the memory 4 and the symbol code S, the processing device 3 prints the control code C along with the character code CH and the symbol code S.
is sent to the control unit 1.

For example, when the character code is the character rAJ and the symbol code S is a mark "O", the control g4j code C is added when printing these two characters overlappingly, that is, when printing a punch. This control code C is composed of 2 bytes, and the first byte is a designation code W for designating overlapping printing, and is numerical data that designates the shift amount of the second byte 11 printing position. In the example,
Is this numerical data? lQJ and hence the letter rAJ
It is specified that the centers of and the symbol "○" are to be printed so that they coincide. On the other hand, if a numerical value (number of dots) is indicated, printing is performed by shifting the print position in the horizontal direction by the indicated numerical value.

3 processing devices, data in memory 4, control code C1
The character code CH and the symbol code S are sent to the control unit 1 in this order. The control unit 1 sends the control code C to the 411 separate unit 5, and also sends the character code CB and symbol code S to the buffer 6.
Store in. After the data in this buffer 6 is read out, it is sent to a character generator 7, where it is converted into dot pattern signals (Pa, Po) corresponding to the respective codes, and then written into a print buffer 8. If control code C is not added, dot pattern signals (pa, po)
are written to the print buffer 8 in the order of sent characters.

However, in the embodiment, control code C is added, so
The discrimination section 5 makes a discrimination, and the dot bang signals (pa, po
) write control. The first byte of control code C is
Specify overlapping printing with "Seki" and shift the second byte fi:f
1OJ, the discriminator 5 puts the dot-bang signal pa of the character rAJ into the address B of the print buffer 8, and then puts the dot pattern signal po of the symbol n into the same address B. In other words, since double writing is performed, as shown by the broken line in the print buffer 8, the address B is
Two dot bang signals with the letter rAJ and the symbol “○” (
pa, po) have been written. Then, the data in the print buffer 8 is sent to the printing section 2, and "Shop" is printed out on the printing paper 9.

Note that this printing is performed by - times of line printing operations.

(fl) Effects of the Invention As described above, the present invention has the advantage that printing efficiency can be significantly improved because overlapping printing can be performed in one printing operation.

[Brief explanation of the drawing]

The drawing includes a block diagram T explaining one embodiment of the present invention,
The symbols used in the figure are as follows. 1 is a control unit, 2 is a printing unit, 3 digit processing device, 4 digit memo 1, 5 digit discrimination 1 distinction unit, 6 digit buffer, 7 digit character generator, 8f-
1 print buffer, 9 print paper, B is address, Cld
! IJ code, CH is character code, Pa. Pot-1: Dot bang signal, s indicates symbol code, and W indicates voice print designation code.

Claims (1)

[Claims] In a printing system in which a dot printer having a printing buffer and a printing section is connected to a control device, the means for sending printing information and a control code specifying 1 stroke and shift p of the printing information is controlled as described above. The dot printer is provided with a means for converting the print information into print data, a discriminating means for discriminating the control code described in page 11, and a means for storing the print data in the print buffer based on the control code. and when the dot printer receives the print information and control code, the print data into which the print information has been converted is added to the address of the print buffer corresponding to the print position specified by the control code. A print control method characterized in that after the printing is performed, the data in the print buffer is outputted from the print section.