JPS5584958A - Electrostatic latent image developing device - Google Patents

Electrostatic latent image developing device

Info

Publication number
JPS5584958A
JPS5584958A JP16063978A JP16063978A JPS5584958A JP S5584958 A JPS5584958 A JP S5584958A JP 16063978 A JP16063978 A JP 16063978A JP 16063978 A JP16063978 A JP 16063978A JP S5584958 A JPS5584958 A JP S5584958A
Authority
JP
Japan
Prior art keywords
diameter
latent image
developing device
electrostatic latent
image developing
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
JP16063978A
Other languages
Japanese (ja)
Inventor
Teruyuki Onuma
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 JP16063978A priority Critical patent/JPS5584958A/en
Publication of JPS5584958A publication Critical patent/JPS5584958A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To obtain the images free from ground stains by letting developing bias be effectively acted. CONSTITUTION:The both end parts of the conductive substrate 1a of a photosensitive drum 1 are made smaller in diameter than the portion where a photosensitive layer 1b is formed and the both end parts of the core metal 5 of a developing roller 4 are made smaller in diameter than the portion covered with an elastic material layer 6. As a result of this, the toner supplied while being defined by a doctor blade 8 from a toner hopper 7 is conveyed by depositing only on the large-diameter elastic material layer 6 of the developing roller 4 and its contact with the conductive substrate 1a is obviated, thus the developing bias voltage being applied to the core metal 5 acts effectively and the toner deposition on the ground part is prevented.
JP16063978A 1978-12-20 1978-12-20 Electrostatic latent image developing device Pending JPS5584958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16063978A JPS5584958A (en) 1978-12-20 1978-12-20 Electrostatic latent image developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16063978A JPS5584958A (en) 1978-12-20 1978-12-20 Electrostatic latent image developing device

Publications (1)

Publication Number Publication Date
JPS5584958A true JPS5584958A (en) 1980-06-26

Family

ID=15719272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16063978A Pending JPS5584958A (en) 1978-12-20 1978-12-20 Electrostatic latent image developing device

Country Status (1)

Country Link
JP (1) JPS5584958A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02282769A (en) * 1989-04-25 1990-11-20 Fujitsu Ltd One component developing device
JPH0772782A (en) * 1993-06-30 1995-03-17 Nec Corp Process cartridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02282769A (en) * 1989-04-25 1990-11-20 Fujitsu Ltd One component developing device
JPH0772782A (en) * 1993-06-30 1995-03-17 Nec Corp Process cartridge

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