JPS6450944U - - Google Patents

Info

Publication number
JPS6450944U
JPS6450944U JP14630087U JP14630087U JPS6450944U JP S6450944 U JPS6450944 U JP S6450944U JP 14630087 U JP14630087 U JP 14630087U JP 14630087 U JP14630087 U JP 14630087U JP S6450944 U JPS6450944 U JP S6450944U
Authority
JP
Japan
Prior art keywords
resistor
thermal head
voltage
circuit
series connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14630087U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP14630087U priority Critical patent/JPS6450944U/ja
Publication of JPS6450944U publication Critical patent/JPS6450944U/ja
Pending legal-status Critical Current

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  • Electronic Switches (AREA)

Description

【図面の簡単な説明】
第1図及び第2図は本考案回路の各実施例の回
路図を示す。 1……サーマルヘツドドライバ、2……制御回
路、3……スイツチ、4,11……検出回路、5
,8……電源、6……シフトレジスタ、7〜7
……アンドゲート、10……ADコンバータ、
〜Q……トランジスタ、RTH〜RTH
……サーマルヘツド抵抗体、CP,CP
…コンパレータ、V,V……基準電圧。

Claims (1)

    【実用新案登録請求の範囲】
  1. 複数設けられたサーマルヘツド抵抗体の各々の
    一端に共通に、電源及び抵抗の直列接続回路を接
    続し、該一端と該直列接続回路との接続点に上記
    サーマルヘツド抵抗体と上記抵抗とによる分圧電
    圧の大きさを検出する電圧検出回路を接続してな
    り、該電圧検出回路の検出電圧にて上記サーマル
    ヘツド抵抗体の破壊の有無を検知するよう構成し
    たサーマルヘツド抵抗体チエツク回路。
JP14630087U 1987-09-25 1987-09-25 Pending JPS6450944U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14630087U JPS6450944U (ja) 1987-09-25 1987-09-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14630087U JPS6450944U (ja) 1987-09-25 1987-09-25

Publications (1)

Publication Number Publication Date
JPS6450944U true JPS6450944U (ja) 1989-03-29

Family

ID=31415656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14630087U Pending JPS6450944U (ja) 1987-09-25 1987-09-25

Country Status (1)

Country Link
JP (1) JPS6450944U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189812A (zh) * 2010-01-22 2011-09-21 精工爱普生株式会社 头元件的动作确认机构及方法和头元件数确认方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189812A (zh) * 2010-01-22 2011-09-21 精工爱普生株式会社 头元件的动作确认机构及方法和头元件数确认方法

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