JPS6429853A - Binary developer - Google Patents

Binary developer

Info

Publication number
JPS6429853A
JPS6429853A JP62185763A JP18576387A JPS6429853A JP S6429853 A JPS6429853 A JP S6429853A JP 62185763 A JP62185763 A JP 62185763A JP 18576387 A JP18576387 A JP 18576387A JP S6429853 A JPS6429853 A JP S6429853A
Authority
JP
Japan
Prior art keywords
toner
charged
friction
powder
polymer
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
JP62185763A
Other languages
Japanese (ja)
Inventor
Hidenobu Yamane
Eiichi Kido
Fumie Nishino
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP62185763A priority Critical patent/JPS6429853A/en
Publication of JPS6429853A publication Critical patent/JPS6429853A/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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To enable control of a charge quantity of a toner by adding to the toner a polymer particle powder be charged to a positive or negative polarity by friction with the toner. CONSTITUTION:The polymer powder to be added to the toner has positive or negative triboelectrifiability at the time of friction with the toner and an average particle diameter smaller than that of the toner particles. When a developer is stirred, this polymer powder covers the surface of each toner particle and is charged by friction with the toner, and the toner is also charged to the reverse polarity,and when the powder material is situated in the upper triboelectrification series, it is charged positively, and when the powder material in the lower series is selected, it is charged negatively, thus permitting the charge quantity of the toner to be controlled.
JP62185763A 1987-07-25 1987-07-25 Binary developer Pending JPS6429853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62185763A JPS6429853A (en) 1987-07-25 1987-07-25 Binary developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62185763A JPS6429853A (en) 1987-07-25 1987-07-25 Binary developer

Publications (1)

Publication Number Publication Date
JPS6429853A true JPS6429853A (en) 1989-01-31

Family

ID=16176446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62185763A Pending JPS6429853A (en) 1987-07-25 1987-07-25 Binary developer

Country Status (1)

Country Link
JP (1) JPS6429853A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590768A2 (en) * 1992-09-28 1994-04-06 Fujitsu Limited Image formation apparatus, developing device incorporated therein and conductive rubber roller used therein
US5407635A (en) * 1992-03-12 1995-04-18 Sumitomo Metal Industries, Ltd. Low-chromium ferritic heat-resistant steel with improved toughness and creep strength
US5746843A (en) * 1996-02-10 1998-05-05 Sumitomo Metal Industries, Ltd. Low Mn-low Cr ferritic heat resistant steel excellent in strength at elevated temperatures
US6406564B1 (en) 1998-12-14 2002-06-18 Nippon Steel Corporation Electric welded boiler steel pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5407635A (en) * 1992-03-12 1995-04-18 Sumitomo Metal Industries, Ltd. Low-chromium ferritic heat-resistant steel with improved toughness and creep strength
EP0590768A2 (en) * 1992-09-28 1994-04-06 Fujitsu Limited Image formation apparatus, developing device incorporated therein and conductive rubber roller used therein
EP0590768A3 (en) * 1992-09-28 1996-07-24 Fujitsu Ltd Image formation apparatus, developing device incorporated therein and conductive rubber roller used therein
EP0822466A1 (en) * 1992-09-28 1998-02-04 Fujitsu Limited Developing device for an image forming apparatus
US5746843A (en) * 1996-02-10 1998-05-05 Sumitomo Metal Industries, Ltd. Low Mn-low Cr ferritic heat resistant steel excellent in strength at elevated temperatures
US6406564B1 (en) 1998-12-14 2002-06-18 Nippon Steel Corporation Electric welded boiler steel pipe

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