JPS6422562A - Printing head current control system of dot impact line printer - Google Patents

Printing head current control system of dot impact line printer

Info

Publication number
JPS6422562A
JPS6422562A JP62178175A JP17817587A JPS6422562A JP S6422562 A JPS6422562 A JP S6422562A JP 62178175 A JP62178175 A JP 62178175A JP 17817587 A JP17817587 A JP 17817587A JP S6422562 A JPS6422562 A JP S6422562A
Authority
JP
Japan
Prior art keywords
printing
current
coil
setting part
time
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
JP62178175A
Other languages
Japanese (ja)
Inventor
Yoshitaka Shirotani
Hideo Kawahara
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.)
YE Data Inc
Original Assignee
YE Data Inc
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 YE Data Inc filed Critical YE Data Inc
Priority to JP62178175A priority Critical patent/JPS6422562A/en
Publication of JPS6422562A publication Critical patent/JPS6422562A/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 perform current control in accordance with printing duty, thereby improve printing density by chopping a coil current according to the amount of printing data after the lapse of a current increasing time. CONSTITUTION:When printing data 5 is provided, it is loaded into a dot line buffer 7 by means of a clock signal 6 in synchronization with printing data 5. After this, a pulse signal regulated by times T1, T2 which are set by a current increasing time T1 setting part 8 and a current application time T2 setting part 10 is entered into a printing head drive circuit 11, synchronized to printing timing through a data gating circuit 9. Then the current is caused to run through a deenergization coil (printing coil) 11, which in turn releases a printing hammer for printing. At that time, the amount of printing data 5 is detected by a detection circuit 12 and this detection signal is entered into a t3/t4 time setting part 13. Next, an output signal from the setting part 13 is supplied to an OR gate 14, and after the lapse of a current increasing time T2, a chopping current/corresponding to the amount of printing data is caused to pass through the coil 11. In this way, printing is performed without density unevenness.
JP62178175A 1987-07-18 1987-07-18 Printing head current control system of dot impact line printer Pending JPS6422562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62178175A JPS6422562A (en) 1987-07-18 1987-07-18 Printing head current control system of dot impact line printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178175A JPS6422562A (en) 1987-07-18 1987-07-18 Printing head current control system of dot impact line printer

Publications (1)

Publication Number Publication Date
JPS6422562A true JPS6422562A (en) 1989-01-25

Family

ID=16043918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62178175A Pending JPS6422562A (en) 1987-07-18 1987-07-18 Printing head current control system of dot impact line printer

Country Status (1)

Country Link
JP (1) JPS6422562A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0499649A (en) * 1990-08-17 1992-03-31 Tokyo Electric Co Ltd Dot printer
JPH04357049A (en) * 1990-08-21 1992-12-10 Seiko Epson Corp Printing wire driving apparatus
JPH05116348A (en) * 1991-10-25 1993-05-14 Oki Electric Ind Co Ltd Drive device of wire dot head
JPH0642446U (en) * 1992-11-18 1994-06-07 アスティ株式会社 Vehicle control device
US6254291B1 (en) 1998-02-27 2001-07-03 Nec Corporation Dot-impact printing head control apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117212U (en) * 1985-12-25 1986-07-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117212U (en) * 1985-12-25 1986-07-24

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0499649A (en) * 1990-08-17 1992-03-31 Tokyo Electric Co Ltd Dot printer
JPH04357049A (en) * 1990-08-21 1992-12-10 Seiko Epson Corp Printing wire driving apparatus
JPH05116348A (en) * 1991-10-25 1993-05-14 Oki Electric Ind Co Ltd Drive device of wire dot head
JPH0642446U (en) * 1992-11-18 1994-06-07 アスティ株式会社 Vehicle control device
US6254291B1 (en) 1998-02-27 2001-07-03 Nec Corporation Dot-impact printing head control apparatus

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