JPS5670579A - Liquid developing device of electrophotographic copier - Google Patents

Liquid developing device of electrophotographic copier

Info

Publication number
JPS5670579A
JPS5670579A JP14644979A JP14644979A JPS5670579A JP S5670579 A JPS5670579 A JP S5670579A JP 14644979 A JP14644979 A JP 14644979A JP 14644979 A JP14644979 A JP 14644979A JP S5670579 A JPS5670579 A JP S5670579A
Authority
JP
Japan
Prior art keywords
developing roller
roller
development
contact
photoreceptor drum
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.)
Pending
Application number
JP14644979A
Other languages
Japanese (ja)
Inventor
Hiroki Izumi
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 JP14644979A priority Critical patent/JPS5670579A/en
Publication of JPS5670579A publication Critical patent/JPS5670579A/en
Pending legal-status Critical Current

Links

Landscapes

  • Wet Developing In Electrophotography (AREA)

Abstract

PURPOSE: To obtain a picture of good quality with no white spot by bringing an elastic movable roller, opposing to a developing roller, into contact with the developing roller only in the development of an electrostatic latent image.
CONSTITUTION: Gap (l) between developing roller 12 and photoreceptor drum 1 should be 30W60μm and porous elastic roller, which is movable to the right and left as shown by arrows, moves to the right in the figure only during development to meet developing roller 12. A developer, contained in the porous member of elastic roller 11, is jetted out by being compressed in contact with developing roller 12 to contact photoreceptor drum 1, so that the edge effect type development will be carried out. Next, the development is also carried out between photoreceptor drum 1 and developing roller 12 and the proximate electrode effect is displayed effectively to stick the toner evenly to the inside of close area, so that even development can be done. At part B, squeeze roller 15 remove an excessive developer to prevent the texture from getting contaminated.
COPYRIGHT: (C)1981,JPO&Japio
JP14644979A 1979-11-14 1979-11-14 Liquid developing device of electrophotographic copier Pending JPS5670579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14644979A JPS5670579A (en) 1979-11-14 1979-11-14 Liquid developing device of electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14644979A JPS5670579A (en) 1979-11-14 1979-11-14 Liquid developing device of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5670579A true JPS5670579A (en) 1981-06-12

Family

ID=15407884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14644979A Pending JPS5670579A (en) 1979-11-14 1979-11-14 Liquid developing device of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5670579A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62242976A (en) * 1986-04-14 1987-10-23 Ricoh Co Ltd Electrophotographic copying device
US5432591A (en) * 1994-02-07 1995-07-11 Hewlett-Packard Company Multi-purpose foam roller in a liquid toner developer
JPH08248774A (en) * 1996-04-08 1996-09-27 Ricoh Co Ltd Electrophotographic copying device
US6094553A (en) * 1998-06-08 2000-07-25 Nec Corporation Cleaning member employing flexible blades and brushes for surface of developer roller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62242976A (en) * 1986-04-14 1987-10-23 Ricoh Co Ltd Electrophotographic copying device
US5432591A (en) * 1994-02-07 1995-07-11 Hewlett-Packard Company Multi-purpose foam roller in a liquid toner developer
JPH08248774A (en) * 1996-04-08 1996-09-27 Ricoh Co Ltd Electrophotographic copying device
US6094553A (en) * 1998-06-08 2000-07-25 Nec Corporation Cleaning member employing flexible blades and brushes for surface of developer roller

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