JPS5477140A - Electrostatic latent image developing apparatus - Google Patents

Electrostatic latent image developing apparatus

Info

Publication number
JPS5477140A
JPS5477140A JP14438677A JP14438677A JPS5477140A JP S5477140 A JPS5477140 A JP S5477140A JP 14438677 A JP14438677 A JP 14438677A JP 14438677 A JP14438677 A JP 14438677A JP S5477140 A JPS5477140 A JP S5477140A
Authority
JP
Japan
Prior art keywords
developing
electrostatic latent
latent image
roller
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
JP14438677A
Other languages
Japanese (ja)
Inventor
Teruyuki Onuma
Seiichi Miyagawa
Hajime Koyama
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 JP14438677A priority Critical patent/JPS5477140A/en
Publication of JPS5477140A publication Critical patent/JPS5477140A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE: To make it possible to obtain an image, which always has stable density, while enlarging the allowability of contacting conditions, and to use the developing apparatus also as a cleaning device by connecting preset tension generating means to a developing member.
CONSTITUTION: A photosensitive drum 5 and a developing roller 6 are turned together so that a powder developing agent 7 in a developing agent container 8 is trapped in accordance with the charges of an electrostatic latent image formed on the drum 5 thereby to visualize an electrostatic latent image. By the tension of a coil spring 10 which has its both ends held by a supporting member 11 so as to provide tension generating means attached to the shaft 9 of the roller 6, the roller 6 is forced into contact with the drum 5, while interposing a developing agent layer 20 inbetween, to apply a preset contact pressure. Since, moreover, a doctor 13 is biased by a compression spring 12, the thickness of the layer 20 can be maintained at a constant.
COPYRIGHT: (C)1979,JPO&Japio
JP14438677A 1977-12-01 1977-12-01 Electrostatic latent image developing apparatus Pending JPS5477140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14438677A JPS5477140A (en) 1977-12-01 1977-12-01 Electrostatic latent image developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14438677A JPS5477140A (en) 1977-12-01 1977-12-01 Electrostatic latent image developing apparatus

Publications (1)

Publication Number Publication Date
JPS5477140A true JPS5477140A (en) 1979-06-20

Family

ID=15360920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14438677A Pending JPS5477140A (en) 1977-12-01 1977-12-01 Electrostatic latent image developing apparatus

Country Status (1)

Country Link
JP (1) JPS5477140A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104359A (en) * 1980-01-11 1981-08-20 Xerox Corp Electronic photography copier developing device
JPS5722251A (en) * 1980-06-02 1982-02-05 Xerox Corp Electrostatic developing method and device
JPH01243069A (en) * 1988-03-24 1989-09-27 Konica Corp Image forming method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104359A (en) * 1980-01-11 1981-08-20 Xerox Corp Electronic photography copier developing device
JPH0338594B2 (en) * 1980-01-11 1991-06-11 Xerox Corp
JPS5722251A (en) * 1980-06-02 1982-02-05 Xerox Corp Electrostatic developing method and device
JPH0352632B2 (en) * 1980-06-02 1991-08-12 Xerox Corp
JPH01243069A (en) * 1988-03-24 1989-09-27 Konica Corp Image forming method

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