JPS64581A - Developer carrier of dry process developing device - Google Patents
Developer carrier of dry process developing deviceInfo
- Publication number
- JPS64581A JPS64581A JP3904888A JP3904888A JPS64581A JP S64581 A JPS64581 A JP S64581A JP 3904888 A JP3904888 A JP 3904888A JP 3904888 A JP3904888 A JP 3904888A JP S64581 A JPS64581 A JP S64581A
- Authority
- JP
- Japan
- Prior art keywords
- developer carrier
- resin coating
- coating layer
- drum
- developing device
- 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
Links
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To prevent the fluctuation in development characteristic by an environmental change by using a developer carrier having a resin coating layer dispersed with a specific conductive filler on the peripheral face. CONSTITUTION:The resin coating layer 6 dispersed with the conductive filler consisting of a material having <=100OMEGAcm specific volume resistivity is provided to the developer carrier 2 which constitutes a dry process developing device. The development of the electrostatic latent image on a photosensitive drum 1 is executed while the resin coating layer 6 of the developing roller 2 is held in contact with the drum. A rubber layer 5 is effective to maintain the good contact state of the drum 1 and the roller 2. The width of the fluctuation in the front layer resistance is thereby decreased and the copy having stable quality without having scumming is obtd. even in the environment of the varying temp. and humidity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63039048A JP2746370B2 (en) | 1987-02-23 | 1988-02-22 | Developer carrier in dry developing device |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3961487 | 1987-02-23 | ||
JP62-39614 | 1987-02-23 | ||
JP63039048A JP2746370B2 (en) | 1987-02-23 | 1988-02-22 | Developer carrier in dry developing device |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH01581A JPH01581A (en) | 1989-01-05 |
JPS64581A true JPS64581A (en) | 1989-01-05 |
JP2746370B2 JP2746370B2 (en) | 1998-05-06 |
Family
ID=26378360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63039048A Expired - Fee Related JP2746370B2 (en) | 1987-02-23 | 1988-02-22 | Developer carrier in dry developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2746370B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688933A (en) * | 1985-05-10 | 1987-08-25 | The Laitram Corporation | Electro-optical position determining system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54155050A (en) * | 1978-05-26 | 1979-12-06 | Ricoh Co Ltd | Device for developing electrostatic latent image |
JPS60115964A (en) * | 1983-11-29 | 1985-06-22 | Ricoh Co Ltd | Manufacture of developer carrying body |
JPS60254064A (en) * | 1984-05-30 | 1985-12-14 | Tokai Rubber Ind Ltd | Electrostatic charging control roller for toner supply |
JPS61176959A (en) * | 1985-01-31 | 1986-08-08 | Ricoh Co Ltd | Developing device |
-
1988
- 1988-02-22 JP JP63039048A patent/JP2746370B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54155050A (en) * | 1978-05-26 | 1979-12-06 | Ricoh Co Ltd | Device for developing electrostatic latent image |
JPS60115964A (en) * | 1983-11-29 | 1985-06-22 | Ricoh Co Ltd | Manufacture of developer carrying body |
JPS60254064A (en) * | 1984-05-30 | 1985-12-14 | Tokai Rubber Ind Ltd | Electrostatic charging control roller for toner supply |
JPS61176959A (en) * | 1985-01-31 | 1986-08-08 | Ricoh Co Ltd | Developing device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688933A (en) * | 1985-05-10 | 1987-08-25 | The Laitram Corporation | Electro-optical position determining system |
Also Published As
Publication number | Publication date |
---|---|
JP2746370B2 (en) | 1998-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |