Digital image forming apparatus which specifies a sensitivity ch

Details Digital image forming apparatus which specifies a sensitivity ch Digital image forming apparatus which specifies a sensitivity ch

1996-03-06

1997-12-02

Frahm, Eric

Facsimile and static presentation processing

Facsimile

Recording apparatus

358406, 358504, 358519, 399 49, 399 74, H04N 100, H04N 146, G03F 308, G03G 2100

Patent

active

056942230

ABSTRACT:
A printer control unit carries out a predetermined calculation based on the amount of adhering toner detected by an AIDC sensor and the surface potential of a photoconductor detected by a V sensor to correct the light emission intensity of a light source to prepare light emission characteristic data for .gamma. correction to obtain an optimal image. A .gamma. correcting unit corrects an image signal output from an image signal processing unit using the calculated light emission characteristic data for .gamma. correction to control the light source to emit light based on the corrected data. More specifically, since the .gamma. correction data is obtained by calculation, optimal .gamma. correction can always be carried out without a memory of a large capacity.

REFERENCES:
patent: 5148289 (1992-09-01), Nishiyama et al.
patent: 5189441 (1993-02-01), Fukui et al.
patent: 5206686 (1993-04-01), Fukui et al.
patent: 5212560 (1993-05-01), Hattori et al.
patent: 5241347 (1993-08-01), Kodama
patent: 5250959 (1993-10-01), Yamada et al.
patent: 5266997 (1993-11-01), Nakane et al.
patent: 5305057 (1994-04-01), Hattori et al.
patent: 5311215 (1994-05-01), Hattori et al.
patent: 5315351 (1994-05-01), Matsushiro et al.
patent: 5583644 (1996-12-01), Sasanuma et al.
patent: 5585927 (1996-12-01), Fukui et al.

Affiliated with

Also associated with

Rating

Digital image forming apparatus which specifies a sensitivity ch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital image forming apparatus which specifies a sensitivity ch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital image forming apparatus which specifies a sensitivity ch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-805913