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Patent Searching and Data


Title:
IMAGE FORMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/198836
Kind Code:
A1
Abstract:
According to the present invention, a control unit executes "E-V measurement (DRY) processing" (S3) and obtains liquid-absent data that expresses the relationship between amount of laser light and the potential at an exposed part for a state in which a carrier liquid is not adhered to a photosensitive drum. The control unit also executes "E-V measurement (WET) processing" (S5) and obtains liquid-present data that expresses the relationship between amount of laser light and the potential at the exposed part for a state in which the carrier liquid is adhered to the photosensitive drum. The control unit uses the liquid-absent data and the liquid-present data to find correction data that expresses the relationship between the potential at the exposed part and a correction amount (S7). During image formation, the control unit uses the correction data to find the amount of laser light to make an exposure device radiate. As a result, it is possible to make the exposure device radiate an amount of laser light that is suitable for achieving exposure in which the potential at the exposed part is a target potential during image formation, even if the reflectance of the laser light varies.

Inventors:
KITAJIMA, Kenichiro (30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 〒1468501, JP)
Application Number:
JP2019/016725
Publication Date:
October 17, 2019
Filing Date:
April 12, 2019
Export Citation:
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Assignee:
CANON KABUSHIKI KAISHA (30-2, Shimomaruko 3-chome Ohta-k, Tokyo 01, 〒1468501, JP)
International Classes:
G03G15/00; G03G15/043; G03G15/10; G03G21/00
Foreign References:
JPH04464A1992-01-06
JP2012103545A2012-05-31
JP2007140351A2007-06-07
JPH1063148A1998-03-06
JPH09319167A1997-12-12
US6131002A2000-10-10
Attorney, Agent or Firm:
YAMADA, Ryuichi (TOKO International Patent Office, Toranomon Sugai Bldg. 2F18-16, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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