JPS56151966A - Developing device - Google Patents

Developing device

Info

Publication number
JPS56151966A
JPS56151966A JP5571180A JP5571180A JPS56151966A JP S56151966 A JPS56151966 A JP S56151966A JP 5571180 A JP5571180 A JP 5571180A JP 5571180 A JP5571180 A JP 5571180A JP S56151966 A JPS56151966 A JP S56151966A
Authority
JP
Japan
Prior art keywords
sleeve
teflon
toner
recesses
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.)
Granted
Application number
JP5571180A
Other languages
Japanese (ja)
Other versions
JPS647665B2 (en
Inventor
Kimio Nakahata
Masaaki Sakurai
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 JP5571180A priority Critical patent/JPS56151966A/en
Publication of JPS56151966A publication Critical patent/JPS56151966A/en
Publication of JPS647665B2 publication Critical patent/JPS647665B2/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
    • 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

Abstract

PURPOSE:To obtain stable images over a long term by forming many recesses and small holes on the surface of a developer support and embedding a substance reducing the triboelectric charging quantity of a developer in the recesses, etc. CONSTITUTION:Developer support 9 is manufactured by forming an oxide film on the surface of an aluminum sleeve by anodic oxidation and immersing the resulting alumite sleeve 10 in an aqueous dispersion of fine pieces of ''Teflon '' to fill Teflon into many recesses and small holes 11 formed on the surface of sleeve 10. When copy is repeated 30,000 times using such as insulating sleeve, no reduction in the image density and no uneven development are caused at all since the filled Teflon reduces the triboelectric charging quantity of a toner and prevents an increase of fine powder of the toner. Thus, stable images are obtd. over a long term.
JP5571180A 1980-04-26 1980-04-26 Developing device Granted JPS56151966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5571180A JPS56151966A (en) 1980-04-26 1980-04-26 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5571180A JPS56151966A (en) 1980-04-26 1980-04-26 Developing device

Publications (2)

Publication Number Publication Date
JPS56151966A true JPS56151966A (en) 1981-11-25
JPS647665B2 JPS647665B2 (en) 1989-02-09

Family

ID=13006455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5571180A Granted JPS56151966A (en) 1980-04-26 1980-04-26 Developing device

Country Status (1)

Country Link
JP (1) JPS56151966A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111658A (en) * 1982-12-17 1984-06-27 Ricoh Co Ltd Developing device
JPS59149376A (en) * 1983-02-10 1984-08-27 ゼロツクス　コ−ポレ−シヨン Toner charging apparatus having wear resistant film
JPH0258764U (en) * 1988-10-20 1990-04-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111658A (en) * 1982-12-17 1984-06-27 Ricoh Co Ltd Developing device
JPS59149376A (en) * 1983-02-10 1984-08-27 ゼロツクス　コ−ポレ−シヨン Toner charging apparatus having wear resistant film
JPH0258764U (en) * 1988-10-20 1990-04-26

Also Published As

Publication number Publication date
JPS647665B2 (en) 1989-02-09

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