Photocopying – Contact printing – Light boxes
Patent
1993-09-27
1996-08-27
Dang, Thu Anh
Photocopying
Contact printing
Light boxes
347116, 355272, G03G 1501
Patent
active
055506259
ABSTRACT:
A color image forming apparatus for forming a color image by transferring images of different colors on a recording medium in a multi-transfer mode. The color image forming apparatus includes a plurality of image forming units for successively forming color images of different colors according to image information, a transfer/transport unit for transporting different color images formed by the image forming units in a state that the color images are successively transferred thereon, a detecting unit for detecting patterns used for detecting an out-of-registration of the color images formed on the transfer/transport unit by the image forming units, and a correcting unit for correcting positions of the color images to be transferred on the transfer/transport unit according to data signal output from the detecting unit. In the apparatus, the transfer/transport unit includes a belt having a light transmission characteristic, the detecting unit includes a light source and a photosensing element which are opposed with respect to the belt. The light source includes a light emitting diode, and the photosensing element includes a photosensing element for detecting the patterns used for detecting the out-of-registration of the color images that are formed on the transfer/transport unit, through a lens-array imaging element.
REFERENCES:
patent: 4916547 (1990-04-01), Katsumata et al.
patent: 4937664 (1990-06-01), Chika et al.
patent: 4972088 (1990-11-01), Weyer et al.
patent: 4990969 (1991-02-01), Rapkin
patent: 5146087 (1992-09-01), VanDusen
patent: 5160946 (1992-11-01), Hwang
patent: 5208796 (1993-05-01), Wong et al.
patent: 5241400 (1993-08-01), Itagaki
patent: 5257037 (1993-10-01), Haneda et al.
patent: 5257047 (1993-10-01), Hareda et al.
patent: 5278625 (1994-01-01), Charnitski et al.
patent: 5291223 (1994-03-01), Ogane et al.
patent: 5291245 (1994-03-01), Charnitski et al.
patent: 5300961 (1994-04-01), Corona et al.
Ito Masao
Takamatsu Masahiro
Dang Thu Anh
Fuji 'Xerox Co., Ltd.
LandOfFree
Color image forming apparatus providing registration control for 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 providing registration control for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color image forming apparatus providing registration control for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1059490