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JPS5480139A - Inspection method for thermal head - Google Patents

Inspection method for thermal head

Info

Publication number
JPS5480139A
JPS5480139A JP14831377A JP14831377A JPS5480139A JP S5480139 A JPS5480139 A JP S5480139A JP 14831377 A JP14831377 A JP 14831377A JP 14831377 A JP14831377 A JP 14831377A JP S5480139 A JPS5480139 A JP S5480139A
Authority
JP
Japan
Prior art keywords
resistance value
electric power
block
thermal head
resistor
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
JP14831377A
Other languages
Japanese (ja)
Inventor
Koji Matsuo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14831377A priority Critical patent/JPS5480139A/en
Publication of JPS5480139A publication Critical patent/JPS5480139A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE:To attempt the reduction of heat resistant inspection processing time by series coupling the resistor of the average resistance value of each heating resistor, and inspecting with an electric power near to the breakdown power. CONSTITUTION:Average resistance of heating resistors... of the thermal head is calculated to obtain a resistance value corresponding to the average resistance of block 1... . This resistance value is set as that of variable resistor Rv series coupled to the block 1, and the electric power near to the breakdown power and which is larger than the operation power is applied to each block via pulse voltage generator SG so that the discrepancy of applied electric power becomes small when compared with the range of distribution of resistance value of the resistors R... . Therefore the inspection of heat resistance and aging, etc. between heating resistors can be carried out.
JP14831377A 1977-12-09 1977-12-09 Inspection method for thermal head Pending JPS5480139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14831377A JPS5480139A (en) 1977-12-09 1977-12-09 Inspection method for thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14831377A JPS5480139A (en) 1977-12-09 1977-12-09 Inspection method for thermal head

Publications (1)

Publication Number Publication Date
JPS5480139A true JPS5480139A (en) 1979-06-26

Family

ID=15449987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14831377A Pending JPS5480139A (en) 1977-12-09 1977-12-09 Inspection method for thermal head

Country Status (1)

Country Link
JP (1) JPS5480139A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729966U (en) * 1980-07-23 1982-02-17
JPS57159667A (en) * 1981-03-27 1982-10-01 Hitachi Ltd Screening method of thin membrane thermal head
JPS61160947U (en) * 1985-11-09 1986-10-06
CN103308815A (en) * 2013-04-18 2013-09-18 国家电网公司 Core aligning device of power cable equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729966U (en) * 1980-07-23 1982-02-17
JPS6325163Y2 (en) * 1980-07-23 1988-07-08
JPS57159667A (en) * 1981-03-27 1982-10-01 Hitachi Ltd Screening method of thin membrane thermal head
JPS61160947U (en) * 1985-11-09 1986-10-06
JPH018366Y2 (en) * 1985-11-09 1989-03-06
CN103308815A (en) * 2013-04-18 2013-09-18 国家电网公司 Core aligning device of power cable equipment

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