JPS6375337U

JPS6375337U -

Info

Publication number: JPS6375337U
Application number: JP16181887U
Authority: JP
Priority date: 1987-10-22
Filing date: 1987-10-22
Publication date: 1988-05-19

Description

[Brief explanation of the drawing]

第１図はドツトプリンタの印字制御方式の説明
図、第２図はドツトプリンタを端末としたシステ
ムの概略構成図、第３図は本考案の一実施例を示
すブロツク図である。図中、２はドツトプリンタ、３，３′はイメー
ジバツフア、ＨＤは印字ヘツド、２０はインター
フエース制御部、２１は印字制御部、２２は紙送
り制御部である。 FIG. 1 is an explanatory diagram of a printing control system for a dot printer, FIG. 2 is a schematic diagram of a system using a dot printer as a terminal, and FIG. 3 is a block diagram showing an embodiment of the present invention. In the figure, 2 is a dot printer, 3 and 3' are image buffers, HD is a print head, 20 is an interface control section, 21 is a print control section, and 22 is a paper feed control section.

Claims

[Claims for Utility Model Registration] A paper feed control unit that drives a paper feed mechanism to feed paper in the vertical direction, an interface control unit that exchanges data with a central processing unit, and the central processing unit. One lateral movement of the image buffer that stores the print pattern data from the device and the print head, which is moved laterally by the head drive mechanism,
A print control device for a dot printer, comprising a print control unit that prints one of a line of characters divided into a plurality of parts along a line along the line direction using data stored in the image buffer, The image buffer has a capacity capable of storing one line of print data printed by multiple horizontal movements of the print head, and the print data for multiple horizontal movements of the print head is continuously transmitted from the central processing unit. and stores it in the image buffer, and also specifies the first printing position and stores it in the current head position register and the evacuation head position register, and performs the first printing using the data in the image buffer. Starting from the first print position, the contents of the current head position register are sequentially increased as the print head traverses, and when the first printing is completed, the head returns, and as the print head returns, the contents of the current head position register are sequentially increased. When the number decreases and becomes equal to the content of the evacuation head position register, the head return is stopped, and the second printing is performed using the data of the image buffer in the same direction as the first printing from the position where the return was stopped. Printing control device.