JPS646985A - Developing device - Google Patents

Developing device

Info

Publication number
JPS646985A
JPS646985A JP62161031A JP16103187A JPS646985A JP S646985 A JPS646985 A JP S646985A JP 62161031 A JP62161031 A JP 62161031A JP 16103187 A JP16103187 A JP 16103187A JP S646985 A JPS646985 A JP S646985A
Authority
JP
Japan
Prior art keywords
toner
development
developing roller
development container
container
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
JP62161031A
Other languages
Japanese (ja)
Inventor
Koji Imamiya
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62161031A priority Critical patent/JPS646985A/en
Publication of JPS646985A publication Critical patent/JPS646985A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent a developer from falling from a development container by rotating a developing roller in its rotation direction at the time of development, and scraping and recovering a developer which gathers at the lower edge part of the opening part of the development container. CONSTITUTION:When developing devices 18 and 19 are used for a long period, toner t'' gathers at the lower edge part of the opening part 31a of the development container 31. At this time, the development container 31 is separated from a photosensitive drum and the developing roller 32 is rotated in the opposite direction from the rotation direction in development. Therefore, toner t1 on the developing roller 32 is stopped by a control member 33 to form a thick layer part 5'. Then the developing roller 32 rotates forward and the toner t'' gathering at the lower end part of the opening part 31a of the development container 31 is scraped by the thick layer part t' of the toner t1 by the forward rotation of the developing roller 32 and recovered in the development container 31. Consequently, the toner t' is prevented from falling from the development container 32 and an image is prevented from being stained.
JP62161031A 1987-06-30 1987-06-30 Developing device Pending JPS646985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62161031A JPS646985A (en) 1987-06-30 1987-06-30 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62161031A JPS646985A (en) 1987-06-30 1987-06-30 Developing device

Publications (1)

Publication Number Publication Date
JPS646985A true JPS646985A (en) 1989-01-11

Family

ID=15727282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62161031A Pending JPS646985A (en) 1987-06-30 1987-06-30 Developing device

Country Status (1)

Country Link
JP (1) JPS646985A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4945207A (en) * 1987-08-12 1990-07-31 Fanuc Ltd. Assist gas control method
US6135745A (en) * 1999-06-09 2000-10-24 T. W. Blasingame Company, Inc. Vane actuation mechanism for an axial vane rotary device
JP2013148705A (en) * 2012-01-19 2013-08-01 Ricoh Co Ltd Developing device, and image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4945207A (en) * 1987-08-12 1990-07-31 Fanuc Ltd. Assist gas control method
US6135745A (en) * 1999-06-09 2000-10-24 T. W. Blasingame Company, Inc. Vane actuation mechanism for an axial vane rotary device
JP2013148705A (en) * 2012-01-19 2013-08-01 Ricoh Co Ltd Developing device, and image forming apparatus

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