JPS56119157A - Electrostatic developing device - Google Patents

Electrostatic developing device

Info

Publication number
JPS56119157A
JPS56119157A JP2249280A JP2249280A JPS56119157A JP S56119157 A JPS56119157 A JP S56119157A JP 2249280 A JP2249280 A JP 2249280A JP 2249280 A JP2249280 A JP 2249280A JP S56119157 A JPS56119157 A JP S56119157A
Authority
JP
Japan
Prior art keywords
sleeve
projection
toner
recording paper
thickness
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
JP2249280A
Other languages
Japanese (ja)
Inventor
Tadashi Nakamura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2249280A priority Critical patent/JPS56119157A/en
Publication of JPS56119157A publication Critical patent/JPS56119157A/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
    • G03G15/08—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
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration
    • G03G15/0928—Details concerning the magnetic brush roller structure, e.g. magnet configuration relating to the shell, e.g. structure, composition

Landscapes

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

Abstract

PURPOSE:To prevent a sheet to be developed from coming into abnormal contact with a toner layer even if an undeveloped sheet gets crumpled or corrugated, by providing a projection of a prescribed thickness at the toner-layer unformed part of a sleeve. CONSTITUTION:Inside of fixed sleeve 1 of a nonmagnetic material, magnet roller 2 is arranged rotatably. At both ends of sleeve 1 where toner layer 3 is not formed, projection 6 is provided partially opposing to the ineffective development area of recording paper 5. As for thickness M of the projection, when recording paper 5 approaches the sleeve surface owing to crumpling and corrugation, the recording paper is pushed against guide 4 by the projection and on a latent image formation surface, no toner sticks physically. When the sleeve rotates, the projection is provided over the entire circumferences at both ends of the sleeve.
JP2249280A 1980-02-25 1980-02-25 Electrostatic developing device Pending JPS56119157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2249280A JPS56119157A (en) 1980-02-25 1980-02-25 Electrostatic developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2249280A JPS56119157A (en) 1980-02-25 1980-02-25 Electrostatic developing device

Publications (1)

Publication Number Publication Date
JPS56119157A true JPS56119157A (en) 1981-09-18

Family

ID=12084221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2249280A Pending JPS56119157A (en) 1980-02-25 1980-02-25 Electrostatic developing device

Country Status (1)

Country Link
JP (1) JPS56119157A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372628A (en) * 1976-12-10 1978-06-28 Hitachi Metals Ltd Permanent magnet roll used for development of electrophotography

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372628A (en) * 1976-12-10 1978-06-28 Hitachi Metals Ltd Permanent magnet roll used for development of electrophotography

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