JPS6437573A - Developing device - Google Patents

Developing device

Info

Publication number
JPS6437573A
JPS6437573A JP62193588A JP19358887A JPS6437573A JP S6437573 A JPS6437573 A JP S6437573A JP 62193588 A JP62193588 A JP 62193588A JP 19358887 A JP19358887 A JP 19358887A JP S6437573 A JPS6437573 A JP S6437573A
Authority
JP
Japan
Prior art keywords
developing roller
guide members
developing
developing device
speedy
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
JP62193588A
Other languages
Japanese (ja)
Other versions
JP2586501B2 (en
Inventor
Yuji Enokuchi
Toshiya Natsuhara
Masafumi Yamamoto
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP62193588A priority Critical patent/JP2586501B2/en
Priority to US07/225,465 priority patent/US4907032A/en
Priority to DE3825921A priority patent/DE3825921A1/en
Publication of JPS6437573A publication Critical patent/JPS6437573A/en
Priority to US07/468,235 priority patent/US5008708A/en
Application granted granted Critical
Publication of JP2586501B2 publication Critical patent/JP2586501B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To bring a developing device and a photosensitive body into speedy contact and noncontact with each other by providing rotatable guide members which have opening parts and internal surfaces nearly conforming with the external surface shape of a developing roller. CONSTITUTION:This device has the reversible developing roller 3, a cylindrical thin film member 2 which has slight surplus peripheral length for the peripheral length of the developing roller and is fitted while covering the developing roller 3, guide members 4 which have the opening parts and internal surfaces nearly conforming with the external surface shape of the developing roller and are arranged on both ends of the developing roller, and stopping members 7 which stops the guide members 4 from rotating. The guide members 4 on the developing roller 3 shift in position through the reversing of the developing roller 3 and the surplus part of the thin film member 2 shift in position. Consequently, the developing device and photosensitive body are brought into and speedy contact and noncontact with each other without moving the whole developing device.
JP62193588A 1987-07-31 1987-07-31 Developing device Expired - Lifetime JP2586501B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62193588A JP2586501B2 (en) 1987-07-31 1987-07-31 Developing device
US07/225,465 US4907032A (en) 1987-07-31 1988-07-28 Monocomponent developing device
DE3825921A DE3825921A1 (en) 1987-07-31 1988-07-29 SINGLE COMPONENT DEVELOPMENT DEVICE
US07/468,235 US5008708A (en) 1987-07-31 1990-01-22 Monocomponent developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62193588A JP2586501B2 (en) 1987-07-31 1987-07-31 Developing device

Publications (2)

Publication Number Publication Date
JPS6437573A true JPS6437573A (en) 1989-02-08
JP2586501B2 JP2586501B2 (en) 1997-03-05

Family

ID=16310469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62193588A Expired - Lifetime JP2586501B2 (en) 1987-07-31 1987-07-31 Developing device

Country Status (1)

Country Link
JP (1) JP2586501B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110941167A (en) * 2018-09-25 2020-03-31 佳能株式会社 Image forming apparatus and developing cartridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110941167A (en) * 2018-09-25 2020-03-31 佳能株式会社 Image forming apparatus and developing cartridge
US11550255B2 (en) 2018-09-25 2023-01-10 Canon Kabushiki Kaisha Image forming apparatus and developing cartridge
CN110941167B (en) * 2018-09-25 2023-05-23 佳能株式会社 Image forming apparatus and developing cartridge

Also Published As

Publication number Publication date
JP2586501B2 (en) 1997-03-05

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Legal Events

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