JPS56104572A - Beam recording device - Google Patents

Beam recording device

Info

Publication number
JPS56104572A
JPS56104572A JP723180A JP723180A JPS56104572A JP S56104572 A JPS56104572 A JP S56104572A JP 723180 A JP723180 A JP 723180A JP 723180 A JP723180 A JP 723180A JP S56104572 A JPS56104572 A JP S56104572A
Authority
JP
Japan
Prior art keywords
beams
signal
detector
state
counter
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
JP723180A
Other languages
Japanese (ja)
Other versions
JPH027064B2 (en
Inventor
Takashi Kitamura
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP723180A priority Critical patent/JPS56104572A/en
Priority to US06/184,146 priority patent/US4393387A/en
Priority to GB8028976A priority patent/GB2061662B/en
Publication of JPS56104572A publication Critical patent/JPS56104572A/en
Publication of JPH027064B2 publication Critical patent/JPH027064B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
    • H04N1/1911—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths
    • H04N1/1916—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths using an array of elements displaced from one another in the main scan direction, e.g. a diagonally arranged array
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
    • H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE:To cause the prime of write positions of respective beams to coincide with one another by a simple control, by forming a device so that a beam detector is scanned under the state where only selected beams out of plural beams are lit. CONSTITUTION:Counter CT performs such control that only light beam LC passes through beam detector BD under the lit state and other beams pass through detector BD under the extinguished state, and the lighting signal is applied to driving circuit terminal T. Control circuit CONT receives the lighting signal make gate counter groups initiatoly state which form the shift register read clock signal. The dot signal is stored into line buffers LBa-LBc during the time from counting of count value (P) by counter CT up to detection of light beam LC detector BD. Buffers LBa-LBc transmit a dot signal by one-line components to delay circuits DL1-DL2 synchronously with the clock signal from gate circuits Ga-Gc. Light beams La-Lc modulated according to the dot signal by modulating circits Da-Dc are scanned in the photosensitive drum axis direction to form a picture on the drum.
JP723180A 1979-09-14 1980-01-24 Beam recording device Granted JPS56104572A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP723180A JPS56104572A (en) 1980-01-24 1980-01-24 Beam recording device
US06/184,146 US4393387A (en) 1979-09-14 1980-09-04 Beam recording apparatus effecting the recording by a plurality of beams
GB8028976A GB2061662B (en) 1979-09-14 1980-09-08 Beam recording apparatus effecting the recording by a plurality of beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP723180A JPS56104572A (en) 1980-01-24 1980-01-24 Beam recording device

Publications (2)

Publication Number Publication Date
JPS56104572A true JPS56104572A (en) 1981-08-20
JPH027064B2 JPH027064B2 (en) 1990-02-15

Family

ID=11660213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP723180A Granted JPS56104572A (en) 1979-09-14 1980-01-24 Beam recording device

Country Status (1)

Country Link
JP (1) JPS56104572A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163871A (en) * 1986-12-26 1988-07-07 Toshiba Corp Image forming device
JPH09141926A (en) * 1995-11-24 1997-06-03 Nec Corp Laser printer
EP1239656A1 (en) * 2001-03-07 2002-09-11 Ricoh Company, Ltd. Method and apparatus for image forming with multiple laser beams
US6654041B2 (en) 2000-11-06 2003-11-25 Ricoh Company, Ltd. Image forming apparatus with photoconductive body, and computer-readable storage medium
US7760223B2 (en) * 2007-05-14 2010-07-20 Ricoh Company, Ltd. Optical scan apparatus and image formation apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158251A (en) * 1978-06-05 1979-12-13 Hitachi Ltd Optical recorder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158251A (en) * 1978-06-05 1979-12-13 Hitachi Ltd Optical recorder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163871A (en) * 1986-12-26 1988-07-07 Toshiba Corp Image forming device
JPH09141926A (en) * 1995-11-24 1997-06-03 Nec Corp Laser printer
US6654041B2 (en) 2000-11-06 2003-11-25 Ricoh Company, Ltd. Image forming apparatus with photoconductive body, and computer-readable storage medium
US6839074B2 (en) 2000-11-06 2005-01-04 Ricoh Company, Ltd. Image forming apparatus with photoconductive body, and computer-readable storage medium
US7006119B2 (en) 2000-11-06 2006-02-28 Ricoh Company, Ltd. Image forming apparatus with photoconductive body, and computer-readable storage medium
EP1239656A1 (en) * 2001-03-07 2002-09-11 Ricoh Company, Ltd. Method and apparatus for image forming with multiple laser beams
US7760223B2 (en) * 2007-05-14 2010-07-20 Ricoh Company, Ltd. Optical scan apparatus and image formation apparatus

Also Published As

Publication number Publication date
JPH027064B2 (en) 1990-02-15

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