JPS6456569A - Method and apparatus for manufacturing thick film type thermal recording head - Google Patents

Method and apparatus for manufacturing thick film type thermal recording head

Info

Publication number
JPS6456569A
JPS6456569A JP21276987A JP21276987A JPS6456569A JP S6456569 A JPS6456569 A JP S6456569A JP 21276987 A JP21276987 A JP 21276987A JP 21276987 A JP21276987 A JP 21276987A JP S6456569 A JPS6456569 A JP S6456569A
Authority
JP
Japan
Prior art keywords
resistance
voltage
target
resistors
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
JP21276987A
Other languages
Japanese (ja)
Inventor
Kazuyasu Satou
Michihiro Watanabe
Munetoshi Zen
Shigeru Obata
Maya Arai
Kazuhiko Ato
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP21276987A priority Critical patent/JPS6456569A/en
Publication of JPS6456569A publication Critical patent/JPS6456569A/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
    • B41J2/335—Structure of thermal heads

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To make it possible to speedily correct scatter of resistance values and attain higher productivity and yield, by combining a means for lowering resistance and a means for raising resistance through applying a plused voltage. CONSTITUTION:After a heat accumulating layer is provided on a ceramic substrate, conductor electrodes are provided by screen printing end firing. Next, resistors are provided by screen printing and firing, and a protective layer is provided. Thereafter, the substrate is brought into contact with a probe, and resistance measurement is carried out for all of the resistors. The resistance values of the resistors ordinarily show an about + or -20% scatter, and a target resistance is set based on the measurement data. After the target resistance is set, the resistance of each individual heat generating resistor is compared with the target resistance, and a pulsed voltage having a pulse width, a period and a voltage according to a correction quantity is applied to the resistor, thereby correcting the resistance of the resistor to the target resistance. The application of the voltage is conducted alternately with the measurement of the resistance, the resistance is varied from an initial value, and the application of the voltage is stopped when the resistance is brought to the target resistance.
JP21276987A 1987-08-28 1987-08-28 Method and apparatus for manufacturing thick film type thermal recording head Pending JPS6456569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21276987A JPS6456569A (en) 1987-08-28 1987-08-28 Method and apparatus for manufacturing thick film type thermal recording head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21276987A JPS6456569A (en) 1987-08-28 1987-08-28 Method and apparatus for manufacturing thick film type thermal recording head

Publications (1)

Publication Number Publication Date
JPS6456569A true JPS6456569A (en) 1989-03-03

Family

ID=16628092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21276987A Pending JPS6456569A (en) 1987-08-28 1987-08-28 Method and apparatus for manufacturing thick film type thermal recording head

Country Status (1)

Country Link
JP (1) JPS6456569A (en)

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