JPS5589873A - Developing device for electronic copier - Google Patents

Developing device for electronic copier

Info

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
Application number
JP16196778A
Other languages
Japanese (ja)
Inventor
Toru Yamazaki
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP16196778A priority Critical patent/JPS5589873A/en
Publication of JPS5589873A publication Critical patent/JPS5589873A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

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
JP16196778A 1978-12-28 1978-12-28 Developing device for electronic copier Pending JPS5589873A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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