JPS57195673A - Type rpinter - Google Patents

Type rpinter

Info

Publication number
JPS57195673A
JPS57195673A JP8093381A JP8093381A JPS57195673A JP S57195673 A JPS57195673 A JP S57195673A JP 8093381 A JP8093381 A JP 8093381A JP 8093381 A JP8093381 A JP 8093381A JP S57195673 A JPS57195673 A JP S57195673A
Authority
JP
Japan
Prior art keywords
printing
printed
circuit
changed
types
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
JP8093381A
Other languages
Japanese (ja)
Inventor
Kyoji Sugimoto
Akio Takano
Nobuhiko Tsunemi
Seiji Ise
Shigeru Uchida
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
Canon Semiconductor Equipment Inc
Original Assignee
Hitachi Ltd
Nippon Typewriter 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 Hitachi Ltd, Nippon Typewriter Co Ltd filed Critical Hitachi Ltd
Priority to JP8093381A priority Critical patent/JPS57195673A/en
Publication of JPS57195673A publication Critical patent/JPS57195673A/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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/44—Control for hammer-impression mechanisms
    • B41J9/48—Control for hammer-impression mechanisms for deciding or adjusting hammer-drive energy

Abstract

PURPOSE:To obtain the printer in the title wherein circuit constants in a constant current mirror circuit are changed in correspondence with the kinds of the types to be printed and printing conditions, a hammer solenoid current is controlled, and fine adjustment of the printing pressure can be performed. CONSTITUTION:Bases of transistors 4-7 are connected to a constant voltage power source Vcc through resistors 15-18 and the output terminals P1-P4 of a printing pulse circuit 19. A memory circuits 30 stores printing pressure data, and makes the output terminals P1-P4 of the printing pulse circuit 19 output a negative printing pulse Pm in response to the types to be printed. The printing pressue can be controlled by the magnitude of the solenoid current iL. The resistance values of the resistors 11-14 are changed. Transistors 4-7 for controlling the constants of the mirror circuit which is turned ON in correspondence with the kinds of the types to be printed are changed. The overall adjustment of the printing pressure is performed by changing the resistance value R9 of a resistor 9 by a switch 29.
JP8093381A 1981-05-29 1981-05-29 Type rpinter Pending JPS57195673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8093381A JPS57195673A (en) 1981-05-29 1981-05-29 Type rpinter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8093381A JPS57195673A (en) 1981-05-29 1981-05-29 Type rpinter

Publications (1)

Publication Number Publication Date
JPS57195673A true JPS57195673A (en) 1982-12-01

Family

ID=13732242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8093381A Pending JPS57195673A (en) 1981-05-29 1981-05-29 Type rpinter

Country Status (1)

Country Link
JP (1) JPS57195673A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545693A (en) * 1983-10-11 1985-10-08 International Business Machines Corporation Drive for thermal printing lift-off correction
JPS6172563A (en) * 1984-09-17 1986-04-14 Matsushita Electric Ind Co Ltd Printing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545693A (en) * 1983-10-11 1985-10-08 International Business Machines Corporation Drive for thermal printing lift-off correction
JPS6172563A (en) * 1984-09-17 1986-04-14 Matsushita Electric Ind Co Ltd Printing apparatus

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