Image forming apparatus having misregistration correction of...

Details Image forming apparatus having misregistration correction of... Image forming apparatus having misregistration correction of...

2009-08-13

2011-11-22

Porta, David (Department: 2884)

Electrophotography

Image formation

Transfer

C347S116000

Reexamination Certificate

active

08064811

ABSTRACT:
An image forming apparatus includes a plurality of image forming units that form toner images in different color; an image carrier which carries the toner image of each color; a determination unit that determines, in relation to a size of image data instructed to print, whether or not a first area where a misregistration correcting image is formed at an end portion in a width direction of the image carrier is secured; a first control unit that controls the image forming unit; and a detection sensor that detects the misregistration correcting image formed on the image carrier by controlling of the first control unit; wherein the misregistration of the toner image formed by each image forming unit is corrected on a basis of a value detected by the detection sensor.

REFERENCES:
patent: 2006/0233561 (2006-10-01), Yamaoka
patent: 2006/0275057 (2006-12-01), Suzuki
patent: 2006/0285863 (2006-12-01), Noguchi et al.
patent: 2007/0274745 (2007-11-01), Ueda et al.
patent: A-2000-206761 (2000-07-01), None
patent: A-2003-295560 (2003-10-01), None
patent: A-2004-177507 (2004-06-01), None
patent: A-2006-293240 (2006-10-01), None
Feb. 22, 2011 Office Action issued in Japanese Patent Application No. 2009-052159 (with translation).

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