JP2003175596A5 - - Google Patents

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Publication number
JP2003175596A5
JP2003175596A5 JP2002263916A JP2002263916A JP2003175596A5 JP 2003175596 A5 JP2003175596 A5 JP 2003175596A5 JP 2002263916 A JP2002263916 A JP 2002263916A JP 2002263916 A JP2002263916 A JP 2002263916A JP 2003175596 A5 JP2003175596 A5 JP 2003175596A5
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JP
Japan
Prior art keywords
head
circuit
main driver
driver circuit
data
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Pending
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JP2002263916A
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Japanese (ja)
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JP2003175596A (en
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Priority to JP2002263916A priority Critical patent/JP2003175596A/en
Priority claimed from JP2002263916A external-priority patent/JP2003175596A/en
Publication of JP2003175596A publication Critical patent/JP2003175596A/en
Publication of JP2003175596A5 publication Critical patent/JP2003175596A5/ja
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Description

【0008】
【課題を解決するための手段】
本発明に従うプリンタヘッドの駆動回路は、印字制御データを送信しヘッド状態データを受信する主ドライバ回路と、前記印字制御データを受信し前記ヘッド状態データを送信するヘッド回路と、前記主ドライバ回路と前記ヘッド回路とを繋ぐケーブルとを備える。ここで、前記ケーブルは、複数の信号線とを含み、前記信号線の少なくとも一つが、前記印字制御データと前記ヘッド状態データの双方に共用されている共通の信号路を有する。さらに、前記主ドライバ回路は、前記共通の信号路の信号伝達方向を、主ドライバ回路が印字制御データをヘッド回路へ送信する第1の方向と、主ドライバ回路がヘッド状態データをヘッド回路から受信する第2の方向のうちいずれかの方向に制御し、ヘッド回路は、異常が発生した時に、主ドライバ回路をして、信号伝達方向を、主ドライバ回路がヘッド状態データをヘッド回路から受信する方向に強制的に切替えさせる。
[0008]
[Means for Solving the Problems]
A drive circuit of a printer head according to the present invention includes: a main driver circuit that transmits print control data and receives head status data; a head circuit that receives the print control data; and transmits the head status data; And a cable connecting the head circuit. Here, the cable includes a plurality of signal lines, and at least one of the signal lines has a common signal path shared by both the print control data and the head state data. Furthermore, the main driver circuit receives the signal transmission direction of the common signal path, a first direction in which the main driver circuit transmits print control data to the head circuit, and the main driver circuit receives head state data from the head circuit. The head circuit controls the head circuit in any one of the second directions, and when an abnormality occurs, the main driver circuit operates the main driver circuit, and the main driver circuit receives head state data from the head circuit in the signal transmission direction. Force to switch to the direction.

Claims (5)

印字制御データを送信しヘッド状態データを受信する主ドライバ回路と、
前記印字制御データを受信し前記ヘッド状態データを送信するヘッド回路と、
前記主ドライバ回路と前記ヘッド回路とを繋ぐケーブルとを備え、
前記ケーブルは複数の信号線を含み、
前記信号線の少なくとも一が、前記印字制御データと前記ヘッド状態データの双方に共用される共通の信号路であり、
前記主ドライバ回路は、前記共通の信号路の信号伝達方向を、前記主ドライバ回路が前記印字制御データを前記ヘッド回路へ送信する第1の方向と、前記主ドライバ回路が前記ヘッド状態データを前記ヘッド回路から受信する第2の方向、のうちいずれかの方向に制御し、
前記ヘッド回路は、異常が発生した時に、前記主ドライバ回路をして、前記信号伝達方向を、前記第2の方向に強制的に切替えさせることを特徴とするプリンタヘッドの駆動回路。
A main driver circuit that transmits print control data and receives head status data;
A head circuit that receives the print control data and transmits the head state data;
A cable connecting the main driver circuit and the head circuit;
The cable includes a plurality of signal lines,
At least one of the signal lines is a common signal path shared by both the print control data and the head status data ,
The main driver circuit transmits a signal transmission direction of the common signal path, a first direction in which the main driver circuit transmits the print control data to the head circuit, and the main driver circuit transmits the head status data. Control in one of the second directions received from the head circuit,
A printer head driving circuit , wherein the head circuit forcibly switches the signal transmission direction to the second direction by the main driver circuit when an abnormality occurs .
請求項1記載の駆動回路に於いて、前記主ドライバ回路が、前記信号伝達方向の制御において、前記第2の方向より前記第1の方向を優先させることを特徴とするプリンタヘッド駆動回路。The printer head driving circuit according to claim 1, wherein the main driver circuit gives priority to the first direction over the second direction in controlling the signal transmission direction . 請求項1記載の駆動回路において、
前記主ドライバ回路が前記印字制御データを発生したとき、前記信号伝達方向を、前記第1の方向に制御し、かつ、前記印字制御データを発生していないインターバル期間には、前記第2の方向に制御することを特徴とするプリンタヘッドの駆動回路。
In the drive circuit according to claim 1,
The main driver circuit, when generating the print control data, the signal transmission direction, and the control in the first direction, and wherein the interval period that does not generate a print control data, the second A printer head driving circuit characterized by controlling in a direction .
請求項3記載の駆動回路に於いて、
前記主ドライバ回路及び前記ヘッド回路がそれぞれ、前記印字制御データ及び前記ヘッド状態データを前記共通の信号路上でシリアルデータの形で伝送するためのパラレルシリアル変換手段を有するプリンタヘッドの駆動回路。
In the drive circuit according to claim 3,
A driving circuit of a printer head, wherein said main driver circuit and said head circuit have parallel serial conversion means for transmitting said printing control data and said head status data in the form of serial data on said common signal path, respectively.
印字制御データを送信しヘッド状態データを受信する主ドライバ回路と前記印字制御データを受信し前記ヘッド状態データを送信するヘッド回路と前記主ドライバ回路と前記ヘッド回路とを繋ぐケーブルとを備え、前記ケーブルは複数の信号線を含み、前記信号線の少なくとも一が、前記印字制御データと前記ヘッド状態データの双方に共用される共通の信号路であるプリンタヘッド駆動回路におけるデータ転送制御方法において、
前記主ドライバ回路から前記ヘッド回路へ、前記印字制御データを、前記共通の信号路を通じて伝送する工程と、
前記ヘッド回路から前記主ドライバ回路へ、前記ヘッド状態データを、前記共通の信号路を通じて伝送する工程と、
前記主ドライバ回路が、前記共通の信号路の信号伝達方向を、前記主ドライバ回路が前記印字制御データを前記ヘッド回路へ送信する第1の方向と、前記主ドライバ回路が前記ヘッド状態データを前記ヘッド回路から受信する第2の方向、のうちいずれかの方向に制御する工程と、
前記ヘッド回路が、異常が発生した時に、前記主ドライバ回路をして、前記信号伝達方向を、前記第2の方向に強制的に切替えさせる工程と、
を有するデータ転送制御方法
A main driver circuit that transmits print control data and receives head status data, a head circuit that receives the print control data, and transmits the head status data, and a cable that connects the main driver circuit and the head circuit; In the data transfer control method in a printer head drive circuit, the cable includes a plurality of signal lines, and at least one of the signal lines is a common signal path shared by both the print control data and the head status data,
Transmitting the print control data from the main driver circuit to the head circuit through the common signal path;
Transmitting the head status data from the head circuit to the main driver circuit through the common signal path;
The main driver circuit transmits the signal transmission direction of the common signal path, the first direction in which the main driver circuit transmits the print control data to the head circuit, and the main driver circuit transmits the head status data. Controlling in one of the second directions received from the head circuit;
When the head circuit causes the main driver circuit to forcibly switch the signal transmission direction to the second direction when an abnormality occurs;
And a data transfer control method .
JP2002263916A 2002-09-10 2002-09-10 Driving circuit of printer head Pending JP2003175596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002263916A JP2003175596A (en) 2002-09-10 2002-09-10 Driving circuit of printer head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002263916A JP2003175596A (en) 2002-09-10 2002-09-10 Driving circuit of printer head

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP8295269A Division JPH10138473A (en) 1996-11-07 1996-11-07 Drive circuit for printer head

Publications (2)

Publication Number Publication Date
JP2003175596A JP2003175596A (en) 2003-06-24
JP2003175596A5 true JP2003175596A5 (en) 2004-09-16

Family

ID=19196806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002263916A Pending JP2003175596A (en) 2002-09-10 2002-09-10 Driving circuit of printer head

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8857934B2 (en) * 2012-02-10 2014-10-14 Canon Kabushiki Kaisha Print element substrate, printhead, and printing apparatus
JP6247452B2 (en) * 2013-05-02 2017-12-13 キヤノン株式会社 Recording head and recording apparatus
JP6957851B2 (en) * 2016-09-29 2021-11-02 セイコーエプソン株式会社 Liquid discharge device

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