JPS57188076A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57188076A
JPS57188076A JP5276781A JP5276781A JPS57188076A JP S57188076 A JPS57188076 A JP S57188076A JP 5276781 A JP5276781 A JP 5276781A JP 5276781 A JP5276781 A JP 5276781A JP S57188076 A JPS57188076 A JP S57188076A
Authority
JP
Japan
Prior art keywords
developing
drum
developing roller
roller
developer
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
JP5276781A
Other languages
Japanese (ja)
Inventor
Masayoshi Furuichi
Akinori Endo
Tetsuya Abe
Shigeki Okawa
Toshiyuki Asakawa
Yoshiaki Kitajima
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
Canon Finetech Nisca Inc
Original Assignee
Canon Inc
Copyer 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 Canon Inc, Copyer Co Ltd filed Critical Canon Inc
Priority to JP5276781A priority Critical patent/JPS57188076A/en
Publication of JPS57188076A publication Critical patent/JPS57188076A/en
Pending 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/101—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer for wetting the recording material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wet Developing In Electrophotography (AREA)

Abstract

PURPOSE:To make it possible to use a developer for contact development also, by reducing the gap between a photosensitive drum and a developing roller in the exit side of a developing device and developing an image while controlling the quantity of the developer and allowing the developing device to perform the deveopment as if the contact development was performed. CONSTITUTION:A developing saucer 5 is cut partially, and a photosensitive drum 1 and a developing roller 20 having the same width as the drum 1 are arranged in a tank 4 immediately after this cutting, and the gap between the surface of the drum 1 and that of the developing roller 20 is varied to, for example, 50- 500mm., and the developing roller 20 is stopped; and the developing roller 20 is moved in the same direction as and the direction opposite to the movement direction of the circumference of the drum 1 while varying properly the peripheral speed from the stop state, and the potential of the earth or a positive bias is applied because the roller 20 is conductive, and the electric charge having the same polarity as a toner is given by a developing corona charger 22, thus obtaining a visible image for the practical use.
JP5276781A 1981-04-07 1981-04-07 Developing device Pending JPS57188076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5276781A JPS57188076A (en) 1981-04-07 1981-04-07 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5276781A JPS57188076A (en) 1981-04-07 1981-04-07 Developing device

Publications (1)

Publication Number Publication Date
JPS57188076A true JPS57188076A (en) 1982-11-18

Family

ID=12924015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5276781A Pending JPS57188076A (en) 1981-04-07 1981-04-07 Developing device

Country Status (1)

Country Link
JP (1) JPS57188076A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9851133B2 (en) 2014-04-22 2017-12-26 Toshiba Carrier Corporation Refrigeration cycle apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9851133B2 (en) 2014-04-22 2017-12-26 Toshiba Carrier Corporation Refrigeration cycle apparatus

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