JPS585748U

JPS585748U - Ink jet printer head drive circuit

Info

Publication number: JPS585748U
Application number: JP9871381U
Authority: JP
Inventors: 光史本荘
Original assignee: 日本電気株式会社
Priority date: 1981-07-02
Filing date: 1981-07-02
Publication date: 1983-01-14

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案に用いられるヘッドのノズル部分の構成
図、第２図は本考案の遅延回路図、第３図はＲＡＭ内の
入出力作動の行程を説明する図である。図中、１はヘッド基板、２は第１のノズル群、３は第２
のノズル群、４はヘッドの走査方向、２０１はＲＡＭ、
２０２はリード／ライト信号、２０３はアドレス・デー
タ、２０４は出力データ、２０５は入力データ、２０６
は入力データ、２０７はドライバー回路、２０８は駆動
信号群、２０９及び２０９′はピエゾ群、２１０はドラ
イバー回路、２１１は駆動信号群、２１２はカラシタ−
，２１３はシフト・パルス、２１４はモノステーブル、
２１５はスイッチ・アレイ、２１６は遅延ビット数コー
ド信号、２１７はコンパレータ、２１８はクリヤー信号
、２１９はシフト・パルス、２２０は可変抵抗器、３０
１及び３０２，３０３゜３０−４，３０５各々はＲＡＭ
２０１の゛メモリー・エリアである。 ′ｔ′３　　図２０５　　　　　　　　　　　２０４FIG. 1 is a block diagram of a nozzle portion of a head used in the present invention, FIG. 2 is a delay circuit diagram of the present invention, and FIG. 3 is a diagram explaining the input/output operation process in the RAM. In the figure, 1 is the head substrate, 2 is the first nozzle group, and 3 is the second nozzle group.
4 is the scanning direction of the head, 201 is the RAM,
202 is a read/write signal, 203 is address data, 204 is output data, 205 is input data, 206
is input data, 207 is a driver circuit, 208 is a drive signal group, 209 and 209' are piezo groups, 210 is a driver circuit, 211 is a drive signal group, 212 is a colorimeter
, 213 is a shift pulse, 214 is a monostable,
215 is a switch array, 216 is a delay bit number code signal, 217 is a comparator, 218 is a clear signal, 219 is a shift pulse, 220 is a variable resistor, 30
1 and 302,303゜30-4,305 each are RAM
201 is a memory area. 't'3 Figure 205 204

Claims

[Scope of utility model registration request]

An ink jet print head with a structure in which the plurality of ejection channel groups in an impulse jet print head are separated into two groups, and the nozzle arrays are arranged in a staggered manner in the vertical direction.
In the head drive circuit, receiving the input first print signal, the first drive circuit drives one of the ejection channel groups.
and a random access drive means for reading and storing the inputted second print signal every time an address is specified.
a memory, a second driving means for driving the other group of ejection channels by a signal read from the random access memory, and a timing pulse generated each time the first print signal is printed. a delay element that delays the timing pulse by a time width of one period or less; a counter that counts the delayed timing pulse and specifies the address of the random access memory; and a delay bit assigned to the output signal of the counter. and a comparator that compares the number signal with the receiver, generates a matching signal, and clears the counter, and print timing is set so that the print patterns from both nozzle groups overlap and match on the paper surface. A drive circuit for an inkjet printer head.