JPS6454476A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6454476A
JPS6454476A JP62209160A JP20916087A JPS6454476A JP S6454476 A JPS6454476 A JP S6454476A JP 62209160 A JP62209160 A JP 62209160A JP 20916087 A JP20916087 A JP 20916087A JP S6454476 A JPS6454476 A JP S6454476A
Authority
JP
Japan
Prior art keywords
force
roller
developing
developing roller
thinly
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
JP62209160A
Other languages
Japanese (ja)
Other versions
JP2645651B2 (en
Inventor
Masato Ohashi
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 JP62209160A priority Critical patent/JP2645651B2/en
Publication of JPS6454476A publication Critical patent/JPS6454476A/en
Application granted granted Critical
Publication of JP2645651B2 publication Critical patent/JP2645651B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the creeping of a developer carrying member or a latent image carrier with a simple constitution, by specifying forces for the developer carrying member when rotation-enabled members of a 1st press-contacting member and a 2nd press-contacting member stop the rotation as well as when they are rotated and frictional force works to both of them. CONSTITUTION:When a thinly layering roller 9 stops its rotation, a developing roller 6 receives the force P by means of the thinly layering roller 9 and a blade 10. If the force P becomes smaller than the force Q that the developing roller 6 receives from both members 9 and 10, or becomes '0' or becomes negative when the thinly layering roller 9 rotates to execute a developing action, the pressurizing force to the developing roller 6 can be made smaller than the pressurizing force at the time of developing actions or can be made '0'. Namely, by properly setting the direction and the size of a force given to the thinly layering roller 9 by the blade 10, the force given to the developing roller 6 from the thinly layering roller 9 side is made smaller to be satisfactorily set '0' (Q>P, it is satisfactory to set P<=0). Thus, the creeping of the developing roller 6 can be reduced or prevented.
JP62209160A 1987-08-25 1987-08-25 Image forming device Expired - Lifetime JP2645651B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62209160A JP2645651B2 (en) 1987-08-25 1987-08-25 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62209160A JP2645651B2 (en) 1987-08-25 1987-08-25 Image forming device

Publications (2)

Publication Number Publication Date
JPS6454476A true JPS6454476A (en) 1989-03-01
JP2645651B2 JP2645651B2 (en) 1997-08-25

Family

ID=16568314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62209160A Expired - Lifetime JP2645651B2 (en) 1987-08-25 1987-08-25 Image forming device

Country Status (1)

Country Link
JP (1) JP2645651B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014836A1 (en) * 1996-09-30 1998-04-09 Matsushita Electric Industrial Co., Ltd. Toner layer forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014836A1 (en) * 1996-09-30 1998-04-09 Matsushita Electric Industrial Co., Ltd. Toner layer forming device
US6049688A (en) * 1996-09-30 2000-04-11 Matsushita Electric Industrial Co., Ltd. Toner layer forming device for non-magnetic toner

Also Published As

Publication number Publication date
JP2645651B2 (en) 1997-08-25

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