Color image forming apparatus using registration marks

Details Color image forming apparatus using registration marks Color image forming apparatus using registration marks

2005-05-10

2009-06-02

Tran, Huan H (Department: 2861)

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

C399S301000

Reexamination Certificate

active

07542058

ABSTRACT:
In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is representing by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

REFERENCES:
patent: 5175570 (1992-12-01), Haneda et al.
patent: 6911993 (2005-06-01), Nishikawa et al.
patent: 08-262823 (1996-10-01), None
patent: 09-267512 (1997-10-01), None
patent: 2000-172133 (2000-06-01), None
patent: 2000-321834 (2000-11-01), None
patent: 2002-023444 (2002-01-01), None
patent: 2002-132005 (2002-05-01), None
Japanese Office Action dated Aug. 19, 2008 and English translation thereof issued in a counterpart Japanese Application.

Affiliated with

Also associated with

Rating

Color image forming apparatus using registration marks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color image forming apparatus using registration marks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color image forming apparatus using registration marks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4116630