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Title:
TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE
Document Type and Number:
Japanese Patent JP3230046
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain a toner having satisfactorily blow property, not causing scattering and capable of forming sharp letters.
SOLUTION: The particle size distribution of this toner with at least toner particles and inorg. fine powder satisfies the conditions of -5X+35≤Y≤25X+180 and 3.5≤X≤6.5 when the wt. average diameter (D4) is represented by X(μm) and the number % of particles of ≤3.17μm on number basis obtd. from the number distribution is represented by Y(%). The inorg. fine powder has been treated with a silane coupling agent and has 60-180g/l bulk density and pH4.5-8.5.


Inventors:
Osamu Tamura
Keita Nozawa
Hiroshi Yusa
Application Number:
JP23906095A
Publication Date:
November 19, 2001
Filing Date:
August 25, 1995
Export Citation:
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Assignee:
Canon Inc
International Classes:
G03G9/08; G03G9/083; G03G9/097; (IPC1-7): G03G9/08; G03G9/083; G03G9/097
Domestic Patent References:
JP675430A
JP5107809A
JP7160039A
JP4288557A
JP247672A
JP247671A
JP764318A
JP52283A
JP792720A
JP6396665A
JP5978362A
JP6338960A
JP62129358A
JP5945457A
JP1231060A
JP572801A
Attorney, Agent or Firm:
Yoshio Toyota (1 outside)