JPS56107274A - Developing device of electrostatic copier - Google Patents

Developing device of electrostatic copier

Info

Publication number
JPS56107274A
JPS56107274A JP1181180A JP1181180A JPS56107274A JP S56107274 A JPS56107274 A JP S56107274A JP 1181180 A JP1181180 A JP 1181180A JP 1181180 A JP1181180 A JP 1181180A JP S56107274 A JPS56107274 A JP S56107274A
Authority
JP
Japan
Prior art keywords
sliding contact
developing sleeve
magnetic toner
stream side
ear cutting
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
JP1181180A
Other languages
Japanese (ja)
Other versions
JPH0158512B2 (en
Inventor
Ryutaro Yamagata
Nobuhiko Kozuka
Hitoshi Nishihama
Shigeo Koyama
Kazutada Sakai
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP1181180A priority Critical patent/JPS56107274A/en
Priority to DE8181300404T priority patent/DE3171869D1/en
Priority to EP19810300404 priority patent/EP0033647B1/en
Priority to EP19830109210 priority patent/EP0103310B1/en
Priority to DE8383109210T priority patent/DE3176117D1/en
Publication of JPS56107274A publication Critical patent/JPS56107274A/en
Publication of JPH0158512B2 publication Critical patent/JPH0158512B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0035—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a brush; Details of cleaning brushes, e.g. fibre density

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the blocking of a one-component type magnetic toner by an ear cutting member by providing a blade member making sliding contact with the peripheral surface of a developing sleeve on the upper stream side just before the ear cutting member along the rotating direction of the developing sleeve. CONSTITUTION:A blade member 76 is provided on the upper stream side of an ear cutting member 75 along a rotating direction 85, by being inclined in a manner as to space from a developing sleeve 71 as it goes nearer the lower stream side; in addition, adjacent magnetic poles of mutually opposite polarities are magnetized in the position of the permanent magnet 77 in the sleeve 71 opposing to the member 75 and the sliding contact position of the free end part 76b of the blade member 76, and plural through-holes 106 permitting the passage of the one-component type magnetic toner are provided to the member 76 in the roughly central position of the position corresponding to the member 75 and the sliding contact position; therefore, just before the member 75, the one-component magnetic toner is fluidized at all times, and does not cause blocking.
JP1181180A 1980-01-31 1980-01-31 Developing device of electrostatic copier Granted JPS56107274A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1181180A JPS56107274A (en) 1980-01-31 1980-01-31 Developing device of electrostatic copier
DE8181300404T DE3171869D1 (en) 1980-01-31 1981-01-30 Cleaning device for an electrostatic copying apparatus
EP19810300404 EP0033647B1 (en) 1980-01-31 1981-01-30 Cleaning device for an electrostatic copying apparatus
EP19830109210 EP0103310B1 (en) 1980-01-31 1981-01-30 Developing device for an electrostatic copying apparatus
DE8383109210T DE3176117D1 (en) 1980-01-31 1981-01-30 Developing device for an electrostatic copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1181180A JPS56107274A (en) 1980-01-31 1980-01-31 Developing device of electrostatic copier

Publications (2)

Publication Number Publication Date
JPS56107274A true JPS56107274A (en) 1981-08-26
JPH0158512B2 JPH0158512B2 (en) 1989-12-12

Family

ID=11788194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1181180A Granted JPS56107274A (en) 1980-01-31 1980-01-31 Developing device of electrostatic copier

Country Status (1)

Country Link
JP (1) JPS56107274A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63139379A (en) * 1986-12-02 1988-06-11 Matsushita Electric Ind Co Ltd Developing machine
WO1988007707A1 (en) * 1987-03-24 1988-10-06 Matsushita Electric Industrial Co., Ltd. Developing device
JPS63243977A (en) * 1987-03-31 1988-10-11 Fuji Xerox Co Ltd Nonmagnetic one-component developing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117177A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device
JPS55117172A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117177A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device
JPS55117172A (en) * 1979-03-02 1980-09-09 Canon Inc Developing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63139379A (en) * 1986-12-02 1988-06-11 Matsushita Electric Ind Co Ltd Developing machine
WO1988007707A1 (en) * 1987-03-24 1988-10-06 Matsushita Electric Industrial Co., Ltd. Developing device
JPS63243977A (en) * 1987-03-31 1988-10-11 Fuji Xerox Co Ltd Nonmagnetic one-component developing device

Also Published As

Publication number Publication date
JPH0158512B2 (en) 1989-12-12

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