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Title:
IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2013195839
Kind Code:
A
Abstract:

To suppress occurrence of ghost in a laser printer.

An image forming apparatus includes: a photoreceptor drum 11 including an under-coat layer (DUC) 11b and a photosensitive layer 11c formed in sequence from a cylindrical metallic base member 11a toward the outside; a charging roll for charging the entire outer circumferential surface of the photoreceptor drum 11 at a specified potential; a raster scan unit for exposing the photoreceptor drum 11 changed by the charging roll; and a CPU for controlling an operation related to image-forming. Further, the under-coat layer (DUC) 11b formed on the photoreceptor drum 11 is set at a resistance value so as to suppress a positive ghost within a specified reference; and the CPU causes the charging roll to charge the photoreceptor drum 11 in advance of the image-forming and then causes the raster scan unit to expose the entire outer circumferential surface of the photoreceptor drum 11.


Inventors:
KOBAYASHI MASANORI
SUGIMOTO TSUTOMU
IWASAKI HITOSHI
HAGIWARA TAKUO
TANAKA HIROTAKA
Application Number:
JP2012064495A
Publication Date:
September 30, 2013
Filing Date:
March 21, 2012
Export Citation:
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Assignee:
FUJI XEROX CO LTD
International Classes:
G03G15/04; G03G5/14; G03G15/00; G03G15/02; G03G21/00
Domestic Patent References:
JP2008052105A2008-03-06
JP2007322996A2007-12-13
JP2004004202A2004-01-08
JP2000047487A2000-02-18
JP2002072583A2002-03-12
JP2008052105A2008-03-06
Attorney, Agent or Firm:
Toshiro Ohata