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JPS6464851A - Intermediate tone printer - Google Patents

Intermediate tone printer

Info

Publication number
JPS6464851A
JPS6464851A JP22219687A JP22219687A JPS6464851A JP S6464851 A JPS6464851 A JP S6464851A JP 22219687 A JP22219687 A JP 22219687A JP 22219687 A JP22219687 A JP 22219687A JP S6464851 A JPS6464851 A JP S6464851A
Authority
JP
Japan
Prior art keywords
sub scan
image information
image
light source
scan speed
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
JP22219687A
Other languages
Japanese (ja)
Other versions
JP2692086B2 (en
Inventor
Katsumi Miwa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP62222196A priority Critical patent/JP2692086B2/en
Publication of JPS6464851A publication Critical patent/JPS6464851A/en
Application granted granted Critical
Publication of JP2692086B2 publication Critical patent/JP2692086B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)
  • Laser Beam Printer (AREA)

Abstract

PURPOSE:To enable an image of high quality without irregularity of density to be formed, by a method wherein variation of a sub scan speed of a recording medium is detected, and image information is corrected based thereon to drive a light source. CONSTITUTION:A light source 1 such as a laser diode or the like irradiating beam light of a laser or the like and a drive circuit 2 driving a light source 1 based on image information are provided, and an image having gradation property is formed on the recording medium 12 by applying modulated beam light from the light source 1 in a main scan direction A crossing a sub scan direction 14 to the recording medium 12 moving at a sub scan speed. In such an intermediate tone printer a rotary encoder 10 detecting the sub scan speed is established to a rotary axis of a sub scan drum 7. Sub scan information via a line l1 and image information are respectively given to an image correcting means 11 via a line l2. Then, the image information is corrected based on the sub scan speed information, which is given to the laser diode drive circuit 2. The image information is thus corrected according to variation of the sub scan speed.
JP62222196A 1987-09-04 1987-09-04 Halftone printer Expired - Lifetime JP2692086B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62222196A JP2692086B2 (en) 1987-09-04 1987-09-04 Halftone printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62222196A JP2692086B2 (en) 1987-09-04 1987-09-04 Halftone printer

Publications (2)

Publication Number Publication Date
JPS6464851A true JPS6464851A (en) 1989-03-10
JP2692086B2 JP2692086B2 (en) 1997-12-17

Family

ID=16778650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62222196A Expired - Lifetime JP2692086B2 (en) 1987-09-04 1987-09-04 Halftone printer

Country Status (1)

Country Link
JP (1) JP2692086B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02181768A (en) * 1989-01-09 1990-07-16 Fuji Xerox Co Ltd Optical writing device
JP2006334788A (en) * 2005-05-31 2006-12-14 Seiko Epson Corp Image forming apparatus and image formation method
US7944463B2 (en) 2005-05-31 2011-05-17 Seiko Epson Corporation Light scanning apparatus, image forming apparatus equipped with such light scanning apparatus, and control method or image forming method for such image forming apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273065A (en) * 1985-05-28 1986-12-03 Fujitsu Ltd Laser printer
JPS6219881A (en) * 1985-07-19 1987-01-28 Fuji Xerox Co Ltd Electrophotographing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273065A (en) * 1985-05-28 1986-12-03 Fujitsu Ltd Laser printer
JPS6219881A (en) * 1985-07-19 1987-01-28 Fuji Xerox Co Ltd Electrophotographing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02181768A (en) * 1989-01-09 1990-07-16 Fuji Xerox Co Ltd Optical writing device
JP2006334788A (en) * 2005-05-31 2006-12-14 Seiko Epson Corp Image forming apparatus and image formation method
US7944463B2 (en) 2005-05-31 2011-05-17 Seiko Epson Corporation Light scanning apparatus, image forming apparatus equipped with such light scanning apparatus, and control method or image forming method for such image forming apparatus

Also Published As

Publication number Publication date
JP2692086B2 (en) 1997-12-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term