JPH02106341U

JPH02106341U -

Info

Publication number: JPH02106341U
Application number: JP1591789U
Authority: JP
Priority date: 1989-02-13
Filing date: 1989-02-13
Publication date: 1990-08-23

Description

[Brief explanation of drawings]

第１図は本考案の印字装置の一実施例のブロツ
ク図、第２図は第１図のアミ点パターン発生回路
１１によるアミ点パターンの展開図、第３図は印
字装置の従来例のブロツク図、第４図はアミ点パ
ターンの例を示すパターン図、第５図は第３図の
印字装置によるアミ点パターン展開の不具合な例
を示す展開図である。１……文字パターン記憶領域、２，３……シフ
トレジスタ、４……切換回路、５……メモリ、６
……制御回路、７……出力処理回路、８……出力
コントローラ、９……出力バツフアメモリ、１０
……プリンタピンヘツド、１１……アミ点パター
ン発生回路、１２，１３……信号、２１，２２，
２３，２４……アミ点パターン、３１，３２，３
３……列。 FIG. 1 is a block diagram of an embodiment of the printing device of the present invention, FIG. 2 is a developed diagram of a tint pattern generated by the tint pattern generation circuit 11 of FIG. 1, and FIG. 3 is a block diagram of a conventional printing device. 4 is a pattern diagram showing an example of a tint pattern, and FIG. 5 is a developed diagram showing an example of a defective tint pattern development by the printing apparatus of FIG. 1... Character pattern storage area, 2, 3... Shift register, 4... Switching circuit, 5... Memory, 6
... Control circuit, 7 ... Output processing circuit, 8 ... Output controller, 9 ... Output buffer memory, 10
... Printer pin head, 11 ... Tint pattern generation circuit, 12, 13 ... Signal, 21, 22,
23, 24... Tint pattern, 31, 32, 3
3...row.

Claims

[Claims for Utility Model Registration] In a printing device that prints characters and other patterns, first and second shift registers that repeatedly generate pulses as a ring counter using a shift clock; a switching circuit that switches and outputs the contents; a memory that temporarily stores the contents of the first and second shift registers input from the switching circuit; and a memory that temporarily stores the contents of the first and second shift registers input from the switching circuit; Generating one column of a tint pattern in which bits are set to "1" at every fixed number of pulses determined by the density setting value of the shift pulse is generated in the shift register and stored in the memory via the switching circuit; After transmitting a tint pattern string consisting of all zeros a certain number of times smaller than the certain number of pulses determined by the density setting value and storing it in the memory, a first shift is sent to a second shift register. The resistor generates one row of tint patterns shifted by a fixed number of pulses smaller than the fixed number of pulses determined by the density setting value from the row of tint patterns generated by the register, and switches the switching circuit to generate the one row of tint patterns. A series of dot patterns are stored in the memory, and then a series of tint dot patterns consisting of all zeros is similarly stored in the memory a certain number of times to form a dot pattern for one character, and a dot pattern for one character is formed. control for forming a pattern development surface of a specified size by repeatedly generating the tint pattern based on an externally applied pattern development signal that specifies the size of a plurality of matrix-like development surfaces of the tint pattern; 1. A printing device characterized by having a tint pattern generation circuit composed of a circuit and a dot pattern generation circuit.