Optical writing device

Details Optical writing device Optical writing device

1994-04-28

1999-07-13

Yockey, David F.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347240, 358298, B41J 2385, B41J 247, H04N 123

Patent

active

059233559

ABSTRACT:
An optical writing device by which an image with desired tone can be obtained. The optical writing device includes a write head and a modulation unit. A time for scanning of one picture element is divided into some periods by the modulation unit. The modulation unit judges whether the picture element will be in an imaged region or in a blank region and whether the picture element must be provided with a supplementary exposure value. The picture element will be provided with an accumulated exposure value corresponding to a desired level of tone by being provided with the supplementary exposure value by order of the modulation unit.

REFERENCES:
patent: 4074318 (1978-02-01), Kapes, Jr.
patent: 4074319 (1978-02-01), Goldschmidt et al.
patent: 4365275 (1982-12-01), Berman et al.
patent: 4394662 (1983-07-01), Yoshida et al.
patent: 4475115 (1984-10-01), Garbe et al.
patent: 4524372 (1985-06-01), De Cock et al.
patent: 4525729 (1985-06-01), Agulnek et al.
patent: 4679057 (1987-07-01), Hamada
patent: 4727428 (1988-02-01), Futatsugi et al.
patent: 4835551 (1989-05-01), Ng
patent: 4843408 (1989-06-01), Tanaka
patent: 4902111 (1990-02-01), Matsubara et al.
patent: 4905027 (1990-02-01), Itoh
patent: 4932761 (1990-06-01), Shingaki et al.
patent: 5043743 (1991-08-01), Habets et al.
patent: 5245355 (1993-09-01), Morton

Affiliated with

Also associated with

Rating

Optical writing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2280762