JPS55117176A - Developing device - Google Patents

Developing device

Info

Publication number
JPS55117176A
JPS55117176A JP2489079A JP2489079A JPS55117176A JP S55117176 A JPS55117176 A JP S55117176A JP 2489079 A JP2489079 A JP 2489079A JP 2489079 A JP2489079 A JP 2489079A JP S55117176 A JPS55117176 A JP S55117176A
Authority
JP
Japan
Prior art keywords
developer
magnetic
capturing
removing plate
hopper
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
JP2489079A
Other languages
Japanese (ja)
Inventor
Nagao Hosono
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2489079A priority Critical patent/JPS55117176A/en
Publication of JPS55117176A publication Critical patent/JPS55117176A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To perform always stable coating of developer and make possible stable and good-quality development by providng a removing means of removing the developer on the surface of a developer holding means prior to feeding of the developer and again imparting the same to the holding means surface and a mangetic capturing means in the position downstream thereof.
CONSTITUTION: A developer removing plate 6 composed of phosphor bronze or the like is mounted in the upstream position in the moving direction of the developer layer to the developing sleeve surface and the scraping off of the developer by the same is once performed prior to feeding of the developer from a hopper 5. Multiple holes are provided near the portions of this removing plate 6 in contact with the sleeve. Further, a magnetic capturing member 9 composed of magnetic body for capturing the lumps of the developer is provided between the removing plate 6 and hopper 5. Thereby, not only the cohered developer and fused developer but also magnetic foreign material and particularly magnetic developer of much magnetic powder content may be captured by the capturing member 9. This makes it possible to perform stable and good-quality development.
COPYRIGHT: (C)1980,JPO&Japio
JP2489079A 1979-03-02 1979-03-02 Developing device Pending JPS55117176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2489079A JPS55117176A (en) 1979-03-02 1979-03-02 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2489079A JPS55117176A (en) 1979-03-02 1979-03-02 Developing device

Publications (1)

Publication Number Publication Date
JPS55117176A true JPS55117176A (en) 1980-09-09

Family

ID=12150775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2489079A Pending JPS55117176A (en) 1979-03-02 1979-03-02 Developing device

Country Status (1)

Country Link
JP (1) JPS55117176A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578566A (en) * 1980-06-18 1982-01-16 Mita Ind Co Ltd Developing device of electrophotographic copying machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578566A (en) * 1980-06-18 1982-01-16 Mita Ind Co Ltd Developing device of electrophotographic copying machine
JPH0158513B2 (en) * 1980-06-18 1989-12-12 Mita Industrial Co Ltd

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