JPS6458561A - Printing head output control circuit - Google Patents

Printing head output control circuit

Info

Publication number
JPS6458561A
JPS6458561A JP21668687A JP21668687A JPS6458561A JP S6458561 A JPS6458561 A JP S6458561A JP 21668687 A JP21668687 A JP 21668687A JP 21668687 A JP21668687 A JP 21668687A JP S6458561 A JPS6458561 A JP S6458561A
Authority
JP
Japan
Prior art keywords
printing head
pulse width
drive
changed
temperature
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
JP21668687A
Other languages
Japanese (ja)
Inventor
Masaaki Masuda
Ryozo Oba
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.)
Toshiba TEC Corp
Original Assignee
Tokyo Electric 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP21668687A priority Critical patent/JPS6458561A/en
Publication of JPS6458561A publication Critical patent/JPS6458561A/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
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/30—Control circuits for actuators

Landscapes

  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE:To enable printing always in best condition by changing the waveform of a drive current which is applied to a drive coil in accordance with the application conditions of a printing head such as variations of its temperature and drive voltage or change of the type of the printing head. CONSTITUTION:An off pulse width T3 and an off pulse width T2 in total energization time T1, continuous energization time T2 and chopper drive period (T1-T2) for determination of the waveform of a head output signal TC can freely be set and changed by operation of a program, depending on whether the temperature of a printing head is higher or lower than a reference temperature. In addition, each time T1, T2 and each pulse width T3, T4 to be set in each timer circuit are changed, by judging whether a drive voltage is higher or lower than the reference voltage based on an input level of an input terminal. Further, each time T1, T2 and each pulse width T3, T4 to be set in each timer circuit are changed depending on the type of a printing head to be used.
JP21668687A 1987-08-31 1987-08-31 Printing head output control circuit Pending JPS6458561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21668687A JPS6458561A (en) 1987-08-31 1987-08-31 Printing head output control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21668687A JPS6458561A (en) 1987-08-31 1987-08-31 Printing head output control circuit

Publications (1)

Publication Number Publication Date
JPS6458561A true JPS6458561A (en) 1989-03-06

Family

ID=16692334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21668687A Pending JPS6458561A (en) 1987-08-31 1987-08-31 Printing head output control circuit

Country Status (1)

Country Link
JP (1) JPS6458561A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5120143A (en) * 1989-07-18 1992-06-09 Brother Kogyo Kabushiki Kaisha Solenoid energization current controlling apparatus
US5452958A (en) * 1992-03-06 1995-09-26 Seiko Epson Corp Drive coil protection apparatus and method and printer incorporating the apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5120143A (en) * 1989-07-18 1992-06-09 Brother Kogyo Kabushiki Kaisha Solenoid energization current controlling apparatus
US5452958A (en) * 1992-03-06 1995-09-26 Seiko Epson Corp Drive coil protection apparatus and method and printer incorporating the apparatus

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