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JPS54104834A - Two-color image reproducing device - Google Patents

Two-color image reproducing device

Info

Publication number
JPS54104834A
JPS54104834A JP1205978A JP1205978A JPS54104834A JP S54104834 A JPS54104834 A JP S54104834A JP 1205978 A JP1205978 A JP 1205978A JP 1205978 A JP1205978 A JP 1205978A JP S54104834 A JPS54104834 A JP S54104834A
Authority
JP
Japan
Prior art keywords
toner
scraped
black developer
developing
plate
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
JP1205978A
Other languages
Japanese (ja)
Other versions
JPS6032189B2 (en
Inventor
Nobuo Mochizuki
Yukio Tabata
Koji Sakamoto
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP53012059A priority Critical patent/JPS6032189B2/en
Publication of JPS54104834A publication Critical patent/JPS54104834A/en
Publication of JPS6032189B2 publication Critical patent/JPS6032189B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To attach the toner of the first developing device entering the second device statically to the conductive surface provided in the second device, to separate the toner from the second device toner, and thereby to form a developed image of high saturation with simple structure.
CONSTITUTION: Positive charged red toner image 22 formed already on dielectric drum 1 is somewhat scraped with a black developer on developing sleeve 14 in a 2- color developing device,then scraped off together with the black developer from sleeve 14 with scraping plate 17, and flows down on plate 17. When they passes between plate 17 and conductive roller 18, the red toner with positive charge is attached to the surface of conductive roller 18 charged negatively, and separated from the black developer. This is recovered in developing vessel 11, and the red toner attach- ed to the roller 18 surface is scraped down with scrarer 20 and recovered in separated vessel 21.
COPYRIGHT: (C)1979,JPO&Japio
JP53012059A 1978-02-06 1978-02-06 Two-color image reproduction device Expired JPS6032189B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53012059A JPS6032189B2 (en) 1978-02-06 1978-02-06 Two-color image reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53012059A JPS6032189B2 (en) 1978-02-06 1978-02-06 Two-color image reproduction device

Publications (2)

Publication Number Publication Date
JPS54104834A true JPS54104834A (en) 1979-08-17
JPS6032189B2 JPS6032189B2 (en) 1985-07-26

Family

ID=11795021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53012059A Expired JPS6032189B2 (en) 1978-02-06 1978-02-06 Two-color image reproduction device

Country Status (1)

Country Link
JP (1) JPS6032189B2 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143568A (en) * 1979-04-26 1980-11-08 Ricoh Co Ltd Developing device
JPS568165A (en) * 1979-07-02 1981-01-27 Hitachi Ltd Electrostatic recording apparatus
JPS5680068A (en) * 1979-12-05 1981-07-01 Ricoh Co Ltd Developing device for two-color electrophotography
JPS56130773A (en) * 1980-03-18 1981-10-13 Ricoh Co Ltd Dichromatic developing device
JPS58105173A (en) * 1981-12-17 1983-06-22 Fujitsu Ltd multicolor recording device
JPS58126543A (en) * 1982-01-22 1983-07-28 Fujitsu Ltd Two-color recording device
JPS58199364A (en) * 1982-05-18 1983-11-19 Hitachi Ltd Developing device
JPS60203967A (en) * 1984-03-28 1985-10-15 Toyo Electric Mfg Co Ltd Two-color display device
US4746954A (en) * 1985-05-14 1988-05-24 Minolta Camera Kabushiki Kaisha Image forming apparatus with toner scattering control
US4972226A (en) * 1988-12-06 1990-11-20 Minolta Camera Kabushiki Kaisha Image processing apparatus operable in plural operation modes
US4978226A (en) * 1988-03-11 1990-12-18 Minolta Camera Kabushiki Kaisha Digital color copying machine for composing and controlling the color of a composed image
US4982238A (en) * 1989-10-19 1991-01-01 Xerox Corporation Developer material mixing apparatus for a development unit
US5081527A (en) * 1988-04-12 1992-01-14 Minolta Camera Kabushiki Kaisha Digital image forming apparatus
US5099293A (en) * 1988-12-06 1992-03-24 Minolta Camera Kabushiki Kaisha Image processing apparatus operable analogue and digital copying modes
US5119182A (en) * 1989-02-23 1992-06-02 Minolta Camera Kabushiki Kaisha Image forming apparatus comprising sample image printing mode and image forming method therefor
US5124799A (en) * 1989-08-11 1992-06-23 Minolta Camera Kabushiki Kaisha Digital color copying machine for forming a plurality of images of the same image
US5165071A (en) * 1988-07-20 1992-11-17 Minolta Camera Kabushiki Kaisha Digital color copying machine
US5182638A (en) * 1988-11-08 1993-01-26 Minolta Camera Kabushiki Kaisha Digital color copying machine comprising a test mode for making a color adjustment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102634281B1 (en) * 2020-12-21 2024-02-07 세메스 주식회사 Apparatus for treating a substrate

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143568A (en) * 1979-04-26 1980-11-08 Ricoh Co Ltd Developing device
JPS568165A (en) * 1979-07-02 1981-01-27 Hitachi Ltd Electrostatic recording apparatus
JPS5680068A (en) * 1979-12-05 1981-07-01 Ricoh Co Ltd Developing device for two-color electrophotography
JPS56130773A (en) * 1980-03-18 1981-10-13 Ricoh Co Ltd Dichromatic developing device
JPS58105173A (en) * 1981-12-17 1983-06-22 Fujitsu Ltd multicolor recording device
JPS58126543A (en) * 1982-01-22 1983-07-28 Fujitsu Ltd Two-color recording device
JPS58199364A (en) * 1982-05-18 1983-11-19 Hitachi Ltd Developing device
JPS60203967A (en) * 1984-03-28 1985-10-15 Toyo Electric Mfg Co Ltd Two-color display device
US4746954A (en) * 1985-05-14 1988-05-24 Minolta Camera Kabushiki Kaisha Image forming apparatus with toner scattering control
US4978226A (en) * 1988-03-11 1990-12-18 Minolta Camera Kabushiki Kaisha Digital color copying machine for composing and controlling the color of a composed image
US5081527A (en) * 1988-04-12 1992-01-14 Minolta Camera Kabushiki Kaisha Digital image forming apparatus
US5165071A (en) * 1988-07-20 1992-11-17 Minolta Camera Kabushiki Kaisha Digital color copying machine
US5182638A (en) * 1988-11-08 1993-01-26 Minolta Camera Kabushiki Kaisha Digital color copying machine comprising a test mode for making a color adjustment
US4972226A (en) * 1988-12-06 1990-11-20 Minolta Camera Kabushiki Kaisha Image processing apparatus operable in plural operation modes
US5099293A (en) * 1988-12-06 1992-03-24 Minolta Camera Kabushiki Kaisha Image processing apparatus operable analogue and digital copying modes
US5119182A (en) * 1989-02-23 1992-06-02 Minolta Camera Kabushiki Kaisha Image forming apparatus comprising sample image printing mode and image forming method therefor
US5124799A (en) * 1989-08-11 1992-06-23 Minolta Camera Kabushiki Kaisha Digital color copying machine for forming a plurality of images of the same image
US4982238A (en) * 1989-10-19 1991-01-01 Xerox Corporation Developer material mixing apparatus for a development unit

Also Published As

Publication number Publication date
JPS6032189B2 (en) 1985-07-26

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