JPS55118069A - Developing device - Google Patents

Developing device

Info

Publication number
JPS55118069A
JPS55118069A JP2532979A JP2532979A JPS55118069A JP S55118069 A JPS55118069 A JP S55118069A JP 2532979 A JP2532979 A JP 2532979A JP 2532979 A JP2532979 A JP 2532979A JP S55118069 A JPS55118069 A JP S55118069A
Authority
JP
Japan
Prior art keywords
developer
toner
good
removing plate
sleeve
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
JP2532979A
Other languages
Japanese (ja)
Inventor
Kozo Arao
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 JP2532979A priority Critical patent/JPS55118069A/en
Publication of JPS55118069A publication Critical patent/JPS55118069A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To make image reproducibility good, faithfullness high and achieve the longer service life of developer by providing a magnetic field generating means on the inner side of a holding means of the upper stream image in the developer moving direction of the developer holding means surface than the developer removing means.
CONSTITUTION: When the developer is removed by a developr removing plate 6, the sleeve 2 surface is maintained always clean and this is good for development performance but since it is removed mechanically, the cohered toner is produced. To prevent the production of this cohered toner, a magetic pole 3e is newly disposed in the fore-process position of the removing plate 6 in contact with the sleeve 2. This causes the toner having returned into a hopper 5 without contributing to development to be trapped by the magnetic pole 3e and prevents the same from colliding against the removing plate 6 by large momentum. Thereby, the occurrence of cohesion and fusion is obviated despite the use of mechanical scraping means, thus the even toner layer may be obtained and good images obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP2532979A 1979-03-05 1979-03-05 Developing device Pending JPS55118069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2532979A JPS55118069A (en) 1979-03-05 1979-03-05 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2532979A JPS55118069A (en) 1979-03-05 1979-03-05 Developing device

Publications (1)

Publication Number Publication Date
JPS55118069A true JPS55118069A (en) 1980-09-10

Family

ID=12162897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2532979A Pending JPS55118069A (en) 1979-03-05 1979-03-05 Developing device

Country Status (1)

Country Link
JP (1) JPS55118069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786868A (en) * 1980-11-20 1982-05-31 Canon Inc Developing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786868A (en) * 1980-11-20 1982-05-31 Canon Inc Developing device

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