JPS646985A - Developing device - Google Patents
Developing deviceInfo
- 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
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.
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)
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 |
-
1987
- 1987-06-30 JP JP62161031A patent/JPS646985A/en active Pending
Cited By (3)
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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