JPS57186776A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57186776A
JPS57186776A JP7176081A JP7176081A JPS57186776A JP S57186776 A JPS57186776 A JP S57186776A JP 7176081 A JP7176081 A JP 7176081A JP 7176081 A JP7176081 A JP 7176081A JP S57186776 A JPS57186776 A JP S57186776A
Authority
JP
Japan
Prior art keywords
developer
surface energy
low surface
latent
image
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
JP7176081A
Other languages
Japanese (ja)
Inventor
Tsuneo Kurotori
Susumu Tatsumi
Manabu Mochizuki
Tadashi Ito
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7176081A priority Critical patent/JPS57186776A/en
Publication of JPS57186776A publication Critical patent/JPS57186776A/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 obtain a uniform copy image with high density by mixing a carrier, coated with a low surface energy material around particles of magnetic powder, in a developer. CONSTITUTION:In a developer 4 wherein magnetic powder carriers 10 coated with a low surface energy material are mixed, the lower part of a non-magnetic sleeve 2 having incorporated magnets 1 is dipped and through the rotation of the sleeve 2, the carriers 5 are drawn up together with the developer and stick to the latent image part of the rotating surface of a latent-image forming photosensitive drum 7. In this case, part of the low surface energy material around each carrier is peeled off and its low surface energy effect allows the developer to stick to the latent image part of the photosensitive drum easily while making the developer hard to stick a no-latent-image part. Therefore, a uniform image with high density is obtained.
JP7176081A 1981-05-13 1981-05-13 Developing device Pending JPS57186776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7176081A JPS57186776A (en) 1981-05-13 1981-05-13 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7176081A JPS57186776A (en) 1981-05-13 1981-05-13 Developing device

Publications (1)

Publication Number Publication Date
JPS57186776A true JPS57186776A (en) 1982-11-17

Family

ID=13469812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7176081A Pending JPS57186776A (en) 1981-05-13 1981-05-13 Developing device

Country Status (1)

Country Link
JP (1) JPS57186776A (en)

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