JPS5451849A - Developing device - Google Patents

Developing device

Info

Publication number
JPS5451849A
JPS5451849A JP11822077A JP11822077A JPS5451849A JP S5451849 A JPS5451849 A JP S5451849A JP 11822077 A JP11822077 A JP 11822077A JP 11822077 A JP11822077 A JP 11822077A JP S5451849 A JPS5451849 A JP S5451849A
Authority
JP
Japan
Prior art keywords
spacing
developing
electrostatic image
fogs
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.)
Granted
Application number
JP11822077A
Other languages
Japanese (ja)
Other versions
JPS6245553B2 (en
Inventor
Kenju Nagaoka
Teruo Morikawa
Katsuhiko Yamada
Kenji Okawara
Atsushi Kubota
Haruo Kadoi
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 JP11822077A priority Critical patent/JPS5451849A/en
Publication of JPS5451849A publication Critical patent/JPS5451849A/en
Publication of JPS6245553B2 publication Critical patent/JPS6245553B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To achieve the prevention of the occurrence of ground fogs and the stabilization of picture quality at the same instant by holding the spacing between electrostatic image holding face and developer carrier small by a spacing holding member.
CONSTITUTION: A spacing holding member 8 which maintains the spacing between the photosensitive drum 4 surface and the sleeve 1 surface at 50μ to 500μ is provided at both end parts, off the developing region extending in the drum axis direction, of the opening part 5a of the developing device housing 5 which is pivotally supported to an axis 6 and is energized by a spring 7 to the photosensitive drum 4 side. The toner deposited on the sleeve 1 erects and grows in the image part of the electrostatic image holding face and makes direct contact with the electrostatic image holding face to perform developing, whereby the toner quantity flying in the developing spacing is reduced and the sensible image of stable picture quality free from ground fogs may be obtained
COPYRIGHT: (C)1979,JPO&Japio
JP11822077A 1977-09-30 1977-09-30 Developing device Granted JPS5451849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11822077A JPS5451849A (en) 1977-09-30 1977-09-30 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11822077A JPS5451849A (en) 1977-09-30 1977-09-30 Developing device

Publications (2)

Publication Number Publication Date
JPS5451849A true JPS5451849A (en) 1979-04-24
JPS6245553B2 JPS6245553B2 (en) 1987-09-28

Family

ID=14731184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11822077A Granted JPS5451849A (en) 1977-09-30 1977-09-30 Developing device

Country Status (1)

Country Link
JP (1) JPS5451849A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827305A (en) * 1986-12-18 1989-05-02 Minolta Camera Kabushiki Kaisha Developing apparatus
JP2008268614A (en) * 2007-04-23 2008-11-06 Konica Minolta Business Technologies Inc Image forming apparatus
JP2015141322A (en) * 2014-01-29 2015-08-03 キヤノン株式会社 DEVELOPING DEVICE UNIT, DEVELOPING DEVICE USING THE SAME, AND PROCESS CARTRIDGE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092137A (en) * 1973-12-14 1975-07-23
JPS5115444A (en) * 1974-07-27 1976-02-06 Canon Kk
JPS5425839A (en) * 1977-07-29 1979-02-27 Ricoh Co Ltd Developing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092137A (en) * 1973-12-14 1975-07-23
JPS5115444A (en) * 1974-07-27 1976-02-06 Canon Kk
JPS5425839A (en) * 1977-07-29 1979-02-27 Ricoh Co Ltd Developing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827305A (en) * 1986-12-18 1989-05-02 Minolta Camera Kabushiki Kaisha Developing apparatus
JP2008268614A (en) * 2007-04-23 2008-11-06 Konica Minolta Business Technologies Inc Image forming apparatus
JP2015141322A (en) * 2014-01-29 2015-08-03 キヤノン株式会社 DEVELOPING DEVICE UNIT, DEVELOPING DEVICE USING THE SAME, AND PROCESS CARTRIDGE

Also Published As

Publication number Publication date
JPS6245553B2 (en) 1987-09-28

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