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Patent Searching and Data


Title:
IMAGE FORMING DEVICE AND PROCESS CARTRIDGE
Document Type and Number:
Japanese Patent JP2001154457
Kind Code:
A
Abstract:

To provide an image forming device in which potential by electrification on a drum is stably applied even in long-term use and scattering, the scraping of the drum and image defects such as fog, drops and voids are not caused.

The image forming device has a photoreceptor with an electrically conductive substrate and a photosensitive layer on the substrate, an electrifying means which brings an electrifying member into contact with the photoreceptor and applies voltage to electrify the photoreceptor, a latent image forming means which forms an electrostatic latent image an the photoreceptor by imagewise exposing the photoreceptor, a developing means which makes the latent image visible with a toner on a toner support to form a toner image and a transfer means which transfers the toner image to a transfer material. A magnetic brush comprising magnetic particles having 104-109 >cm volume resistance is used as the contact electrifying member. The toner comprises a polyester resin and a colorant and has 3-40 mgKOH/g acid value.


Inventors:
Aida, Shuichi
Mizoe, Marekatsu
Arataira, Fumihiro
Application Number:
JP1999000341270
Publication Date:
June 08, 2001
Filing Date:
November 30, 1999
Export Citation:
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Assignee:
CANON INC
International Classes:
G03G15/02; G03G9/087; G03G15/08; (IPC1-7): G03G15/02; G03G9/087; G03G15/08
Attorney, Agent or Firm:
世良 和信 (外1名)