Title:
IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP3883362
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an image forming device which can prevent the filming of a photoreceptor even when zinc stearate is used by dispersing the same into toners and can achieve the uniform electrostatic charge free of surface staining by poor electrostatic charge.
SOLUTION: In the initial period of development when the photoreceptor filming is liable to occur, the applied current of the electrostatic charge is suppressed to a lower level and when the photoreceptor filming is least likely to occur and the poor electrostatic charge is liable to occur as time passes by, the applied current of the electrostatic charge is increased to prevent the surface staining by the poor electrostatic charge. Constant current control of 1.0 mA in AC component is carried out at a constant voltage of -600 V from the initial period of using a cartridge up to passing of 4,000 sheets. The constant current control of 1.3 mA in AC component is carried out after lapse of 4,000 sheets.
Inventors:
Shigeru Watanabe
Application Number:
JP2000154750A
Publication Date:
February 21, 2007
Filing Date:
May 25, 2000
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G15/02; G03G21/00; (IPC1-7): G03G15/02; G03G21/00
Domestic Patent References:
| JP11084823A | ||||
| JP7160165A | ||||
| JP11143182A |
Attorney, Agent or Firm:
Naoki Yoshimura
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