Title:
IMAGE-FORMING APPARATUS
Document Type and Number:
Japanese Patent JP3079076
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily correct misregistration, by relatively detecting information related to the misregistrations of color images of the other electrostatic recording units with respect to a reference image which is the color image of one of a plurality of electrostatic recording units, and making correction to eliminate the misregistration in accordance with the detection result.
SOLUTION: When an image is to be formed, resist marks of color components are sequentially transferred onto a belt by a plurality of electrostatic recording units at a misregistration detection part 116, and then optically detected, whereby the misregistrations of the resist marks of the other color components with respect to a reference resist mark of a reference image is detected. Thereafter, when image data transmitted from a host device are developed to pixel data in an image memory 82, the write address is corrected by a misregistration correction part 124 on the basis of the detected information of the misregistration from the misregistration detection part 116 to correct the misregistration of a symmetric image with respect to the reference image at the time of printing, and printing without misregistration is carried out.
Inventors:
Yoji Houki
Koichi Kobayashi
Koji Uchimura
Morihisa Kawahara
Tsutomu Nagatomi
Hirofumi Nakayasu
Hiroyuki Kaneda
Takeo Kojima
Kazuhiro Tamada
Akihisa Soda
Yoshihiko Taira
Koichi Kobayashi
Koji Uchimura
Morihisa Kawahara
Tsutomu Nagatomi
Hirofumi Nakayasu
Hiroyuki Kaneda
Takeo Kojima
Kazuhiro Tamada
Akihisa Soda
Yoshihiko Taira
Application Number:
JP32910897A
Publication Date:
August 21, 2000
Filing Date:
November 28, 1997
Export Citation:
Assignee:
富士通株式会社
International Classes:
B41J11/42; B41J2/44; B41J2/45; B41J2/455; B41J2/525; B41J29/38; G03G15/01; G03G21/14; H04N1/29; H04N1/50; (IPC1-7): B41J2/525; B41J2/44; B41J2/45; B41J2/455; B41J29/38; G03G15/01
Domestic Patent References:
| JP8278680A | ||||
| JP10198110A | ||||
| JP10228152A | ||||
| JP10282763A | ||||
| JP89158A | ||||
| JP8152978A | ||||
| JP434568A | ||||
| JP4131750A | ||||
| JP63286864A | ||||
| JP6263281A | ||||
| JP6278322A | ||||
| JP250176A | ||||
| JP8101555A |
Attorney, Agent or Firm:
Tadahiko Ito