JPS57123068A - Impact type dot printer - Google Patents

Impact type dot printer

Info

Publication number
JPS57123068A
JPS57123068A JP895881A JP895881A JPS57123068A JP S57123068 A JPS57123068 A JP S57123068A JP 895881 A JP895881 A JP 895881A JP 895881 A JP895881 A JP 895881A JP S57123068 A JPS57123068 A JP S57123068A
Authority
JP
Japan
Prior art keywords
head
print
medium
pulse
stops
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
JP895881A
Other languages
Japanese (ja)
Inventor
Shun Mizutani
Yasuo Omori
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP895881A priority Critical patent/JPS57123068A/en
Publication of JPS57123068A publication Critical patent/JPS57123068A/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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms

Landscapes

  • Common Mechanisms (AREA)

Abstract

PURPOSE:To uniform the quality of printing in a dot printer wherein the space between a print head and a print medium is to be maintained at a constant, by obtaining the control information of the head's impact force by causing the head to reverse for a fixed distance after it is once pressed against the medium. CONSTITUTION:Prior to starting print, a pulse motor 9 is caused to rotate normally and by this the end of a print head 1 moves to touch with a print medium 5 and stops, and a displacement indicating bar 17 indicates position P2. Next, when a reverse rotation command is issued, the motoe 9 rotates by a predetermined number of pulse, the print head 1 moves backward by a fixed distance l and stops and the bar 17 indicates position P3. When a position which is moved backward by the distance of l from a platen 6 is assumed as P0, P3- P0 becomes the thickness of the print medium 5. These positions are given to a pulse generator circuit 19 by a detector 16 and they become drive control signals of which standard pulse width is adjusted according to the thickness of the medium 5 and the impact force of the head is controlled so that it becomes constant.
JP895881A 1981-01-26 1981-01-26 Impact type dot printer Pending JPS57123068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP895881A JPS57123068A (en) 1981-01-26 1981-01-26 Impact type dot printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP895881A JPS57123068A (en) 1981-01-26 1981-01-26 Impact type dot printer

Publications (1)

Publication Number Publication Date
JPS57123068A true JPS57123068A (en) 1982-07-31

Family

ID=11707175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP895881A Pending JPS57123068A (en) 1981-01-26 1981-01-26 Impact type dot printer

Country Status (1)

Country Link
JP (1) JPS57123068A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60141249U (en) * 1984-02-29 1985-09-19 ブラザー工業株式会社 serial printer
JPS60250977A (en) * 1984-05-29 1985-12-11 Brother Ind Ltd Paper thickness detector for printer
JPS6487279A (en) * 1987-09-29 1989-03-31 Pfu Ltd Printing gap setting mechanism
JPH02113979A (en) * 1988-10-25 1990-04-26 Tokyo Electric Co Ltd Dot printer
JPH0323953A (en) * 1989-06-20 1991-01-31 Pfu Ltd Impact printer
JPH0569562A (en) * 1991-09-13 1993-03-23 Tokyo Electric Co Ltd Printing pressure adjusting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934238A (en) * 1972-07-28 1974-03-29
JPS5363127A (en) * 1976-11-13 1978-06-06 Philips Nv Printer
JPS5422227A (en) * 1977-07-15 1979-02-20 Nippon Signal Co Ltd Wire dot printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934238A (en) * 1972-07-28 1974-03-29
JPS5363127A (en) * 1976-11-13 1978-06-06 Philips Nv Printer
JPS5422227A (en) * 1977-07-15 1979-02-20 Nippon Signal Co Ltd Wire dot printer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60141249U (en) * 1984-02-29 1985-09-19 ブラザー工業株式会社 serial printer
JPH0442140Y2 (en) * 1984-02-29 1992-10-05
JPS60250977A (en) * 1984-05-29 1985-12-11 Brother Ind Ltd Paper thickness detector for printer
JPS6487279A (en) * 1987-09-29 1989-03-31 Pfu Ltd Printing gap setting mechanism
JPH02113979A (en) * 1988-10-25 1990-04-26 Tokyo Electric Co Ltd Dot printer
JPH0323953A (en) * 1989-06-20 1991-01-31 Pfu Ltd Impact printer
JPH0569562A (en) * 1991-09-13 1993-03-23 Tokyo Electric Co Ltd Printing pressure adjusting device

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