Pel placement correction in the scan dimension of a multiple bea

Details Pel placement correction in the scan dimension of a multiple bea Pel placement correction in the scan dimension of a multiple bea

1989-08-01

1990-12-18

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

346108, G01D 1514

Patent

active

049788493

ABSTRACT:
This is an electronic scheme for correcting mechanical misalignment and electrical delays from laser beam to laser beam in the scan direction of a multiple beam laser scanning system for use in an electrophotographic machine. The position at which a reference beam is turned on is sensed and adjusted to a desired position. Thereafter, the positions at which non-reference laser beams are turned on are sensed and adjusted to the desired position. In one enbodiment, the energization of laser beams is positioned at the trailing edge of the second element of a photodector. In a second embodiment, the point of full laser energy is matched, beam to beam, at the junction of the same two elements in a CCD array. Programmable delay lines are used to obtain sub-pel resolution.

REFERENCES:
patent: 4253102 (1981-02-01), Kataoka et al.
patent: 4393387 (1983-07-01), Kitamura
patent: 4404571 (1983-09-01), Kitamura
patent: 4420761 (1983-12-01), Kitamura
patent: 4423426 (1983-12-01), Kitamura
patent: 4424442 (1984-01-01), Kitamura
patent: 4443695 (1984-04-01), Kitamura
patent: 4445126 (1984-04-01), Tsukada
patent: 4467334 (1984-08-01), Anzai et al.
patent: 4566043 (1986-01-01), Tamura
patent: 4725855 (1988-02-01), Arimoto et al.
patent: 4739415 (1988-04-01), Toyono et al.
patent: 4806951 (1989-02-01), Arimoto et al.

Affiliated with

Also associated with

Rating

Pel placement correction in the scan dimension of a multiple bea does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pel placement correction in the scan dimension of a multiple bea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pel placement correction in the scan dimension of a multiple bea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1427042