JPS5763565A - Color printing system - Google Patents

Color printing system

Info

Publication number
JPS5763565A
JPS5763565A JP55137690A JP13769080A JPS5763565A JP S5763565 A JPS5763565 A JP S5763565A JP 55137690 A JP55137690 A JP 55137690A JP 13769080 A JP13769080 A JP 13769080A JP S5763565 A JPS5763565 A JP S5763565A
Authority
JP
Japan
Prior art keywords
photoconductive drum
irradiated
image
toner image
optical image
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
JP55137690A
Other languages
Japanese (ja)
Other versions
JPH0125059B2 (en
Inventor
Masayasu Anzai
Nobuyoshi Hoshi
Isamu Komatsu
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55137690A priority Critical patent/JPS5763565A/en
Publication of JPS5763565A publication Critical patent/JPS5763565A/en
Publication of JPH0125059B2 publication Critical patent/JPH0125059B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/0126—Details of unit using a solid developer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To print a clear picture at a high speed without requiring complex device constitution by performing the 1st development in black and by performing high- resistance magnetic brush reversal development as the 2nd one. CONSTITUTION:A photoconductive drum is electrified uniformly by a charger 2 and then irradiated with the 1st optical image 3 to form a charge latent image, which is developed being reversed by the 1st developing device 4. Some part of the photoconductive drum 1 which was not irradiated with the 1st optical image 3 is irradiated with the 2nd optical image 5 to form the 2nd charge latent image, which is developed being reversed by the 2nd developing device 6 to form a bicolor toner image on the photoconductive drum 1. The thus formed toner image is transferred to recording paper 7 by a transferring device 8 in the presence of transfer corona and then fixed. The toner image remaining on the photoconductive drum 1 is removed by a cleaner 9 and the same process is repeated to obtain many pictures continuously.
JP55137690A 1980-10-03 1980-10-03 Color printing system Granted JPS5763565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137690A JPS5763565A (en) 1980-10-03 1980-10-03 Color printing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137690A JPS5763565A (en) 1980-10-03 1980-10-03 Color printing system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2105816A Division JPH0333767A (en) 1990-04-20 1990-04-20 Color printing system

Publications (2)

Publication Number Publication Date
JPS5763565A true JPS5763565A (en) 1982-04-17
JPH0125059B2 JPH0125059B2 (en) 1989-05-16

Family

ID=15204518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137690A Granted JPS5763565A (en) 1980-10-03 1980-10-03 Color printing system

Country Status (1)

Country Link
JP (1) JPS5763565A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076766A (en) * 1983-10-04 1985-05-01 Konishiroku Photo Ind Co Ltd Recording method of color image
JPS6132854A (en) * 1984-07-25 1986-02-15 Konishiroku Photo Ind Co Ltd Image forming method
JPS61118775A (en) * 1984-11-15 1986-06-06 Konishiroku Photo Ind Co Ltd Method and device for image formation
JPS61223856A (en) * 1985-03-29 1986-10-04 Konishiroku Photo Ind Co Ltd Multicolored image forming device
JPH02167577A (en) * 1989-11-13 1990-06-27 Konica Corp Color image forming method
JPH06198976A (en) * 1991-12-19 1994-07-19 Konica Corp Color image forming device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5583069A (en) * 1978-12-19 1980-06-23 Hitachi Ltd Non-impact printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5583069A (en) * 1978-12-19 1980-06-23 Hitachi Ltd Non-impact printer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076766A (en) * 1983-10-04 1985-05-01 Konishiroku Photo Ind Co Ltd Recording method of color image
JPH0228865B2 (en) * 1983-10-04 1990-06-26 Konishiroku Photo Ind
JPS6132854A (en) * 1984-07-25 1986-02-15 Konishiroku Photo Ind Co Ltd Image forming method
JPS61118775A (en) * 1984-11-15 1986-06-06 Konishiroku Photo Ind Co Ltd Method and device for image formation
JPH0228866B2 (en) * 1984-11-15 1990-06-26 Konishiroku Photo Ind
JPS61223856A (en) * 1985-03-29 1986-10-04 Konishiroku Photo Ind Co Ltd Multicolored image forming device
JPH0228867B2 (en) * 1985-03-29 1990-06-26 Konishiroku Photo Ind
JPH02167577A (en) * 1989-11-13 1990-06-27 Konica Corp Color image forming method
JPH0468630B2 (en) * 1989-11-13 1992-11-02 Konishiroku Photo Ind
JPH06198976A (en) * 1991-12-19 1994-07-19 Konica Corp Color image forming device

Also Published As

Publication number Publication date
JPH0125059B2 (en) 1989-05-16

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