Title:
FULL-COLOR IMAGE FORMING METHOD
Document Type and Number:
Japanese Patent JP3721899
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a nonmagnetic one-component black toner which is provided with a satisfactory electric charge imparting effect in a developing device using a nonmagnetic one-component system and having a small-sized developing roll and an electrifying blade, can ensure an adequate quantity of electric charges because of rapid build-up of electrostatic charge, causes slight extra toner fog to a photoreceptor and no stain of white part of print, gives a solid image having good homogeneousness, has good storage stability even in the case of long-time storage, can ensure satisfactory fluidity necessary for a toner and has good coveyability.
SOLUTION: In the full-color image forming method in which a color image is formed using plural color toners and a black toner, each of the color toners and the black toner contains at least a bonding resin, a polyolefin wax, a colorant and an electrostatic charge controlling agent, the softening temperature of each of the color toners is lower than that of the black toner and the amount of the polyolefin wax in each of the color toners is equal to on larger than that of the polyolefin wax in the black toner.
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Inventors:
Mikio Unno
Ryuji Takehara
Takeshi Owada
Teruki Senoguchi
Masakazu Sugihara
Ryuji Takehara
Takeshi Owada
Teruki Senoguchi
Masakazu Sugihara
Application Number:
JP32934399A
Publication Date:
November 30, 2005
Filing Date:
November 19, 1999
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
G03G9/09; G03G9/08; G03G9/087; G03G9/097; (IPC1-7): G03G9/09; G03G9/08; G03G9/087; G03G9/097
Domestic Patent References:
| JP9160293A | ||||
| JP9269609A | ||||
| JP8101553A | ||||
| JP10254177A | ||||
| JP9288381A | ||||
| JP7152206A | ||||
| JP7271101A |
Attorney, Agent or Firm:
Hasegawa Soji