JPS568112A - Scanning type image recorder - Google Patents

Scanning type image recorder

Info

Publication number
JPS568112A
JPS568112A JP8418079A JP8418079A JPS568112A JP S568112 A JPS568112 A JP S568112A JP 8418079 A JP8418079 A JP 8418079A JP 8418079 A JP8418079 A JP 8418079A JP S568112 A JPS568112 A JP S568112A
Authority
JP
Japan
Prior art keywords
signal
width
inverted
image
thinning
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
JP8418079A
Other languages
Japanese (ja)
Other versions
JPS6333145B2 (en
Inventor
Koichi Sakugi
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 JP8418079A priority Critical patent/JPS568112A/en
Priority to US06/165,139 priority patent/US4387983A/en
Priority to DE19803025089 priority patent/DE3025089A1/en
Publication of JPS568112A publication Critical patent/JPS568112A/en
Publication of JPS6333145B2 publication Critical patent/JPS6333145B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE: To eliminate the thinning-down of image and achieve the improvement in the image quality of characters by changing the width of the image signal in an apparatus of a system by which nonexposed parts are visualized.
CONSTITUTION: A character code signal is applied to a terminal 1, from which it is inputted as the series signal of a signal line 9 into a processing circuit 10, by which it is inverted to an inverted signal 501. This signal is further applied as the signal 502 of an expanded pulse width Δt to a beam modulator 53. Here, if the visualizing level is defined as 504 when the inverted signal 501 is used straightly as a modulating signal, a width 505 is obtained. When the signal 502 is used as a modulating signal, the position where a scanning spot is produced moves from 511 to 512 and therefore, the exposure distribution becomes as shown by solid lines in 504 and the width to be visualized becomes 506. If the scanning speed of the scanning spot is defined as Vs, the length of the segment extends by Vs.Δt. Because of this, the thinning-down of the images may be eliminated and the image quality may be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP8418079A 1979-07-03 1979-07-03 Scanning type image recorder Granted JPS568112A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8418079A JPS568112A (en) 1979-07-03 1979-07-03 Scanning type image recorder
US06/165,139 US4387983A (en) 1979-07-03 1980-07-01 Scan type image recording apparatus
DE19803025089 DE3025089A1 (en) 1979-07-03 1980-07-02 SCAN IMAGING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8418079A JPS568112A (en) 1979-07-03 1979-07-03 Scanning type image recorder

Publications (2)

Publication Number Publication Date
JPS568112A true JPS568112A (en) 1981-01-27
JPS6333145B2 JPS6333145B2 (en) 1988-07-04

Family

ID=13823276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8418079A Granted JPS568112A (en) 1979-07-03 1979-07-03 Scanning type image recorder

Country Status (1)

Country Link
JP (1) JPS568112A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156856A (en) * 1980-05-09 1981-12-03 Hitachi Ltd Printer
JPS57154974A (en) * 1981-03-19 1982-09-24 Sharp Corp Recorder
JPS5834675A (en) * 1981-08-24 1983-03-01 Ricoh Co Ltd Scanning type image recorder
US4396246A (en) * 1980-10-02 1983-08-02 Xerox Corporation Integrated electro-optic wave guide modulator
JPS60120660A (en) * 1983-12-03 1985-06-28 Matsushita Electric Ind Co Ltd Light beam irradiating device
JPS60120661A (en) * 1983-12-03 1985-06-28 Matsushita Electric Ind Co Ltd Light beam irradiating device
JPS60149066A (en) * 1984-01-13 1985-08-06 Ricoh Co Ltd Image-recording method
JPS60149067A (en) * 1984-01-13 1985-08-06 Ricoh Co Ltd Recording method of image
JPS60154268A (en) * 1984-01-24 1985-08-13 Ricoh Co Ltd Image recording method
JPS60154267A (en) * 1984-01-24 1985-08-13 Ricoh Co Ltd Image recording method
JPS6127560A (en) * 1984-07-18 1986-02-07 Konishiroku Photo Ind Co Ltd Multicolor image forming method
JPS635662A (en) * 1986-06-25 1988-01-11 Ricoh Co Ltd Generation method for modulation signal in optical scanner
US4855841A (en) * 1987-05-25 1989-08-08 Ricoh Company, Ltd. Recording signal generating circuit for printing
US4942407A (en) * 1988-10-05 1990-07-17 Hitachi, Ltd. Scanning type image recording apparatus
WO1996034320A1 (en) * 1995-04-26 1996-10-31 Hitachi, Ltd. Electrophotographic recording device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226621B2 (en) * 1980-05-09 1987-06-10 Hitachi Ltd
JPS56156856A (en) * 1980-05-09 1981-12-03 Hitachi Ltd Printer
US4396246A (en) * 1980-10-02 1983-08-02 Xerox Corporation Integrated electro-optic wave guide modulator
JPS57154974A (en) * 1981-03-19 1982-09-24 Sharp Corp Recorder
JPS6258585B2 (en) * 1981-03-19 1987-12-07 Sharp Kk
JPS5834675A (en) * 1981-08-24 1983-03-01 Ricoh Co Ltd Scanning type image recorder
JPS60120660A (en) * 1983-12-03 1985-06-28 Matsushita Electric Ind Co Ltd Light beam irradiating device
JPS60120661A (en) * 1983-12-03 1985-06-28 Matsushita Electric Ind Co Ltd Light beam irradiating device
JPS60149067A (en) * 1984-01-13 1985-08-06 Ricoh Co Ltd Recording method of image
JPS60149066A (en) * 1984-01-13 1985-08-06 Ricoh Co Ltd Image-recording method
JPS60154268A (en) * 1984-01-24 1985-08-13 Ricoh Co Ltd Image recording method
JPS60154267A (en) * 1984-01-24 1985-08-13 Ricoh Co Ltd Image recording method
JPS6127560A (en) * 1984-07-18 1986-02-07 Konishiroku Photo Ind Co Ltd Multicolor image forming method
JPS635662A (en) * 1986-06-25 1988-01-11 Ricoh Co Ltd Generation method for modulation signal in optical scanner
US4855841A (en) * 1987-05-25 1989-08-08 Ricoh Company, Ltd. Recording signal generating circuit for printing
US4942407A (en) * 1988-10-05 1990-07-17 Hitachi, Ltd. Scanning type image recording apparatus
WO1996034320A1 (en) * 1995-04-26 1996-10-31 Hitachi, Ltd. Electrophotographic recording device

Also Published As

Publication number Publication date
JPS6333145B2 (en) 1988-07-04

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