JPS54520A - Confirming method of operation of dot head - Google Patents

Confirming method of operation of dot head

Info

Publication number
JPS54520A
JPS54520A JP6551877A JP6551877A JPS54520A JP S54520 A JPS54520 A JP S54520A JP 6551877 A JP6551877 A JP 6551877A JP 6551877 A JP6551877 A JP 6551877A JP S54520 A JPS54520 A JP S54520A
Authority
JP
Japan
Prior art keywords
dot head
confirming method
current
dot
dot heads
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.)
Granted
Application number
JP6551877A
Other languages
Japanese (ja)
Other versions
JPS5758302B2 (en
Inventor
Jiyunichirou Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Signal Co Ltd
Original Assignee
Nippon Signal Co Ltd
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 by Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP6551877A priority Critical patent/JPS54520A/en
Publication of JPS54520A publication Critical patent/JPS54520A/en
Publication of JPS5758302B2 publication Critical patent/JPS5758302B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE: To perform the confirmation of operation with a simple circuit without affecting the print sharpness of dot heads and the logical operation of a drive circuit, by detecting the presence of current in an alternating curent supply line or that the current shange at the non-operation and operation of the dot heads is more than a given value.
COPYRIGHT: (C)1979,JPO&Japio
JP6551877A 1977-06-02 1977-06-02 Confirming method of operation of dot head Granted JPS54520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6551877A JPS54520A (en) 1977-06-02 1977-06-02 Confirming method of operation of dot head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6551877A JPS54520A (en) 1977-06-02 1977-06-02 Confirming method of operation of dot head

Publications (2)

Publication Number Publication Date
JPS54520A true JPS54520A (en) 1979-01-05
JPS5758302B2 JPS5758302B2 (en) 1982-12-09

Family

ID=13289322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6551877A Granted JPS54520A (en) 1977-06-02 1977-06-02 Confirming method of operation of dot head

Country Status (1)

Country Link
JP (1) JPS54520A (en)

Also Published As

Publication number Publication date
JPS5758302B2 (en) 1982-12-09

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