JPS57160662A - Printing position control system in reciprocal scanning - Google Patents

Printing position control system in reciprocal scanning

Info

Publication number
JPS57160662A
JPS57160662A JP56046934A JP4693481A JPS57160662A JP S57160662 A JPS57160662 A JP S57160662A JP 56046934 A JP56046934 A JP 56046934A JP 4693481 A JP4693481 A JP 4693481A JP S57160662 A JPS57160662 A JP S57160662A
Authority
JP
Japan
Prior art keywords
light beam
time
detection
point
starting
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.)
Granted
Application number
JP56046934A
Other languages
Japanese (ja)
Other versions
JPS6232673B2 (en
Inventor
Tomohisa Mikami
Fumitaka Abe
Tadashi Matsuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56046934A priority Critical patent/JPS57160662A/en
Publication of JPS57160662A publication Critical patent/JPS57160662A/en
Publication of JPS6232673B2 publication Critical patent/JPS6232673B2/ja
Granted 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
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/47—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light

Landscapes

  • Facsimile Scanning Arrangements (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE:To reduce the misalignment in printed dots by accurately determining the starting and ending points in an effective scanning range at the time of reciprocal scannnig using a galvanomirror. CONSTITUTION:A light beam emitted from a semiconductor laser 1 is reflcted by a mirror surface 12 of the moving galvanomirror, and the reciprocal scanning is performed in the range between Q and R with a spot diameter. When the scanning is started in the direction of B, the light beam is located at the starting point of the effective scanning range (S2) after a specified time (a) has elapsed from the detection of the light beam by a light detector 13. The position of the light beam is computed based on the elaspsed time from the point of time. A time (c) from the time point, where the arrival of the light beam at the end of the effective scanning range (S2) is computed, up to the detection of the light beam by a light detector 14 is measured. Then the scanning direction is reversed to the direction of an arrow B'. At the time point when the time length equal to (c) has elapsed from the detection of the light beam by the light detector 14, the light beam is considered to be located at the starting pont of the effective scanning range (S2). This procedure is repeated hereinafter.
JP56046934A 1981-03-30 1981-03-30 Printing position control system in reciprocal scanning Granted JPS57160662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046934A JPS57160662A (en) 1981-03-30 1981-03-30 Printing position control system in reciprocal scanning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046934A JPS57160662A (en) 1981-03-30 1981-03-30 Printing position control system in reciprocal scanning

Publications (2)

Publication Number Publication Date
JPS57160662A true JPS57160662A (en) 1982-10-04
JPS6232673B2 JPS6232673B2 (en) 1987-07-16

Family

ID=12761141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046934A Granted JPS57160662A (en) 1981-03-30 1981-03-30 Printing position control system in reciprocal scanning

Country Status (1)

Country Link
JP (1) JPS57160662A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59108373U (en) * 1983-01-12 1984-07-21 コニカ株式会社 Light beam scanning device
JPS60142321A (en) * 1983-12-28 1985-07-27 Fuji Photo Film Co Ltd Light beam scanner
EP1275998A1 (en) * 2001-07-11 2003-01-15 Canon Kabushiki Kaisha Light beam deflecting apparatus, image forming apparatus utilizing the same and drive method therefor
KR100499879B1 (en) * 2001-07-11 2005-07-07 캐논 가부시끼가이샤 Light beam deflecting apparatus, image forming apparatus utilizing the same and drive method therefor
JP2007140380A (en) * 2005-11-22 2007-06-07 Fuji Xerox Co Ltd Optical scanner and image forming apparatus
US7920156B2 (en) 2004-07-26 2011-04-05 Seiko Epson Corporation Image forming apparatus, image forming method and data control device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119332A (en) * 1976-03-31 1977-10-06 Canon Inc Generator for synchronous signal
JPS5482911A (en) * 1977-12-15 1979-07-02 Ricoh Co Ltd Facsimile unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119332A (en) * 1976-03-31 1977-10-06 Canon Inc Generator for synchronous signal
JPS5482911A (en) * 1977-12-15 1979-07-02 Ricoh Co Ltd Facsimile unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59108373U (en) * 1983-01-12 1984-07-21 コニカ株式会社 Light beam scanning device
JPS60142321A (en) * 1983-12-28 1985-07-27 Fuji Photo Film Co Ltd Light beam scanner
JPH0519686B2 (en) * 1983-12-28 1993-03-17 Fuji Photo Film Co Ltd
EP1275998A1 (en) * 2001-07-11 2003-01-15 Canon Kabushiki Kaisha Light beam deflecting apparatus, image forming apparatus utilizing the same and drive method therefor
KR100499879B1 (en) * 2001-07-11 2005-07-07 캐논 가부시끼가이샤 Light beam deflecting apparatus, image forming apparatus utilizing the same and drive method therefor
US6937372B2 (en) 2001-07-11 2005-08-30 Canon Kabushiki Kaisha Light beam deflecting apparatus, image forming apparatus utilizing the same and drive method therefor
US7920156B2 (en) 2004-07-26 2011-04-05 Seiko Epson Corporation Image forming apparatus, image forming method and data control device
US8120634B2 (en) 2004-07-26 2012-02-21 Seiko Epson Corporation Image forming apparatus, image forming method and data control device
JP2007140380A (en) * 2005-11-22 2007-06-07 Fuji Xerox Co Ltd Optical scanner and image forming apparatus

Also Published As

Publication number Publication date
JPS6232673B2 (en) 1987-07-16

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