Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1998-08-07
1999-10-12
Phan, James
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359216, 359217, 347233, G02B 2608
Patent
active
059662310
ABSTRACT:
Compensation for beam separation of multiple laser beams of a laser printer simultaneously scanning a photoconductor drum is automatically made. The time for the lead beam to travel a predetermined distance is ascertained and then the separation time between the lead beam and one of the remaining beams is determined. When using only one light sensor, the time for the lead beam to travel the predetermined distance is the scan time of the lead beam. When using two light sensors, the time for the lead beam to travel the predetermined distance is the time for the lead beam to travel between the two light sensors, which define the predetermined distance, in the same scan. This determination of the time for the lead beam to travel the predetermined distance and its separation time from another of the remaining beams is continuously made for all of the remaining beams even during printing. If the beam separation time of each of the remaining beams from the lead beam is large enough for the one light sensor to generate distinct pulses for the lead beam and any one of the remaining beams during the same scan, the separation time for any one of the laser beams can be directly measured in only one scan.
REFERENCES:
patent: 4404571 (1983-09-01), Kitamura
patent: 4423426 (1983-12-01), Kitamura
patent: 4541712 (1985-09-01), Whitney
patent: 4725855 (1988-02-01), Arimoto et al.
patent: 4823151 (1989-04-01), Miura
patent: 4905025 (1990-02-01), Sakamoto et al.
patent: 4933549 (1990-06-01), Fujioka et al.
patent: 4950889 (1990-08-01), Budd et al.
patent: 4978849 (1990-12-01), Goddard et al.
patent: 4978976 (1990-12-01), Okino
patent: 5006705 (1991-04-01), Saito et al.
patent: 5373154 (1994-12-01), Chen
patent: 5426528 (1995-06-01), Yamamoto et al.
patent: 5576852 (1996-11-01), Sawada et al.
patent: 5578819 (1996-11-01), Kataoka et al.
patent: 5883731 (1999-03-01), Kasai
Bush Craig Palmer
Heink Philip Jerome
Klaffenbach David Kurt
Wade Thomas Campbell
Leach Frank
Lexmark International Inc.
McArdle, Jr. John J.
Phan James
LandOfFree
Method and apparatus for aligning multiple laser beams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for aligning multiple laser beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for aligning multiple laser beams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-657833