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Title:
ONE COMPONENT MAGNETIC DEVELOPING AND IMAGE FORMING METHOD
Document Type and Number:
Japanese Patent JP3108842
Kind Code:
B2
Abstract:

PURPOSE: To provide an one component magnetic developer capable of forming an image with high resolution and high precision reproducibility.
CONSTITUTION: The one component magnet developer is obtained by adding a hydrophobic silicic acid fine powder into toner particles containing at least a binding resin, a magnetic powder and a black titanium oxide and is 4-10μm weight average particle diameter, contains 5-60 pts.wt. magnetic material and 0.2-20 pts.wt. black titanium oxide per 100 pts.wt. binding resin and is 100≥&verbar Qd&verbar ≥ 40μc/g in the absolute value &verbar Qd&verbar of two component tribo of the magnetic developer per that of iron powder.


Inventors:
Satoshi Yoshida
Riki Kukimoto
Motoo Urawa
Application Number:
JP23227093A
Publication Date:
November 13, 2000
Filing Date:
August 26, 1993
Export Citation:
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Assignee:
Canon Inc
International Classes:
G03G9/083; G03G9/08; G03G13/08; G03G13/09; (IPC1-7): G03G9/083; G03G9/08; G03G13/08; G03G13/09
Domestic Patent References:
JP60142354A
JP6273974A
JP60207150A
JP4281467A
JP62262055A
JP1167847A
JP60117255A
JP3282482A
Attorney, Agent or Firm:
Yoshio Toyota (1 outside)



 
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