JPS6437572A - Developing device - Google Patents

Developing device

Info

Publication number
JPS6437572A
JPS6437572A JP62193587A JP19358787A JPS6437572A JP S6437572 A JPS6437572 A JP S6437572A JP 62193587 A JP62193587 A JP 62193587A JP 19358787 A JP19358787 A JP 19358787A JP S6437572 A JPS6437572 A JP S6437572A
Authority
JP
Japan
Prior art keywords
developing roller
guide members
developing
thin film
film member
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
JP62193587A
Other languages
Japanese (ja)
Other versions
JP2586500B2 (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 JP62193587A priority Critical patent/JP2586500B2/en
Priority to US07/225,465 priority patent/US4907032A/en
Priority to DE3825921A priority patent/DE3825921A1/en
Publication of JPS6437572A publication Critical patent/JPS6437572A/en
Priority to US07/468,235 priority patent/US5008708A/en
Application granted granted Critical
Publication of JP2586500B2 publication Critical patent/JP2586500B2/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 a cylindrical thin film member which is fitted onto a developing roller and guide members which have internal surfaces nearly conforming with the external surface shape of the developing roller and are rotatable on both ends of the developing roller. CONSTITUTION:This device has the developing roller 3, the cylindrical thin film member 2 which has slight surplus length for the peripheral length of the developing roller 3 and are fitted while covering the developing roller, the rotatable guide members 4 which has the internal surfaces nearly confirming with the external surface shape of the developing roller 3 and are arranged on both ends of the developing roller 3, and stopping members 7a and 7b which allow or inhibit the rotation of the guide members 4. The guide members 4 on the developing roller 3 shift in position by the operation of the stopping members 7a and 7b and the position of the surplus part of the thin film member 2 moves. Consequently, the developing device and photosensitive body are brought into easy and speedy contact and noncontact with each other without moving the whole developing device.
JP62193587A 1987-07-31 1987-07-31 Developing device Expired - Lifetime JP2586500B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62193587A JP2586500B2 (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
JP62193587A JP2586500B2 (en) 1987-07-31 1987-07-31 Developing device

Publications (2)

Publication Number Publication Date
JPS6437572A true JPS6437572A (en) 1989-02-08
JP2586500B2 JP2586500B2 (en) 1997-02-26

Family

ID=16310455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62193587A Expired - Lifetime JP2586500B2 (en) 1987-07-31 1987-07-31 Developing device

Country Status (1)

Country Link
JP (1) JP2586500B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138832A (en) * 1984-07-31 1986-02-24 Mitsubishi Heavy Ind Ltd Machine tool taking measure for heat
JPS61284337A (en) * 1985-06-07 1986-12-15 Hitachi Seiko Ltd Construction for preventing machine tool from thermal deformation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138832A (en) * 1984-07-31 1986-02-24 Mitsubishi Heavy Ind Ltd Machine tool taking measure for heat
JPS61284337A (en) * 1985-06-07 1986-12-15 Hitachi Seiko Ltd Construction for preventing machine tool from thermal deformation

Also Published As

Publication number Publication date
JP2586500B2 (en) 1997-02-26

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