JPS5589873A - Developing device for electronic copier - Google Patents
Developing device for electronic copierInfo
- Publication number
- JPS5589873A JPS5589873A JP16196778A JP16196778A JPS5589873A JP S5589873 A JPS5589873 A JP S5589873A JP 16196778 A JP16196778 A JP 16196778A JP 16196778 A JP16196778 A JP 16196778A JP S5589873 A JPS5589873 A JP S5589873A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- developing roll
- sleeve
- photosensitive drum
- rotating
- 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
Abstract
PURPOSE: To simplify the device and facilitate maintenance, by distributing the developer only with the magnetic attracting power by two magnetic brush developing rolls having fixed magnets in sleeves rotating in reverse directions.
CONSTITUTION: The constitution is made up of photosensitive drum 1, paddle 2 for supplying developer to developing roll 6, plate 3 to define the quantity of developer, fixed magnets 4, 7, sleeve 5 rotating in the same direction as the photosensitive drum 1, and sleeve 8 rotating in the reverse direction of the photosensitive drum 1. The parts 4 and 5, and 7 and 8 respectively form developing rolls 6 and 9. Also a scraper 11 to scrape the developer off the developing roll 9 to return to the developer reservoir, a toner replenishing box 12, and an impeller for agitation of developer 13 are provided. The developer being deposited on the developing roll 6 by means of the paddle 2, defined in a constant quantity by means of the developer quantity defining plate 3, and conveyed on the sleeve 5 is supplied by the necessary quantity to the S3 pole of the developing roll 9 by the magnetic attracting force at N2 pole.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16196778A JPS5589873A (en) | 1978-12-28 | 1978-12-28 | Developing device for electronic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16196778A JPS5589873A (en) | 1978-12-28 | 1978-12-28 | Developing device for electronic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5589873A true JPS5589873A (en) | 1980-07-07 |
Family
ID=15745472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16196778A Pending JPS5589873A (en) | 1978-12-28 | 1978-12-28 | Developing device for electronic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589873A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57201560U (en) * | 1981-06-19 | 1982-12-22 | ||
US4982223A (en) * | 1988-12-19 | 1991-01-01 | Ricoh Company, Ltd. | Developer guide for preventing developer from entering gap between developing sleeves |
JP2014123000A (en) * | 2012-12-21 | 2014-07-03 | Fuji Xerox Co Ltd | Developing device and image forming apparatus |
US10563305B2 (en) | 2015-05-13 | 2020-02-18 | Versum Materials Us, Llc | Container for chemical precursors in a deposition process |
-
1978
- 1978-12-28 JP JP16196778A patent/JPS5589873A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57201560U (en) * | 1981-06-19 | 1982-12-22 | ||
US4982223A (en) * | 1988-12-19 | 1991-01-01 | Ricoh Company, Ltd. | Developer guide for preventing developer from entering gap between developing sleeves |
JP2014123000A (en) * | 2012-12-21 | 2014-07-03 | Fuji Xerox Co Ltd | Developing device and image forming apparatus |
US10563305B2 (en) | 2015-05-13 | 2020-02-18 | Versum Materials Us, Llc | Container for chemical precursors in a deposition process |
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