Image forming apparatus

Details Image forming apparatus Image forming apparatus

1997-05-09

2000-04-25

Couso, Yon J.

Facsimile and static presentation processing

Natural color facsimile

Image reproduction

358521, H04N 100

Patent

active

060550716

ABSTRACT:
An image forming apparatus according to the present invention comprises a scanner for optically scanning and reading a draft image, an image processing circuit for converting input image signals from this scanner to output image signals by referring to an image signal conversion table and outputting the converted signals, a laser optical system for writing image information on a photosensitive drum in response to the output image signals, developing units for forming images with toner, an image signal generating means for generating a plurality of gradation patterns, and a CPU which prepares and selectors an image signal conversion table according to read signals for gradation patterns read by the scanner; wherein a read signal for a gradation pattern comprises a plurality of signals with different spectral sensitivity respectively, and said image forming apparatus has a RAM to store calibration factors for the plurality of factors with different spectral sensitivity respectively and calibrates read signals according to a calibration factor from the RAM.

REFERENCES:
patent: 5194945 (1993-03-01), Kadowaki et al.
patent: 5508826 (1996-04-01), Lloyd et al.
patent: 5585927 (1996-12-01), Fukui et al.
patent: 5754683 (1998-05-01), Hayashi et al.
patent: 5764378 (1998-06-01), Oda et al.
patent: 5767991 (1998-06-01), Hara

Affiliated with

Also associated with

Rating

Image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-998073