Methods and apparatus for ascertaining sensor signal delay...

Details Methods and apparatus for ascertaining sensor signal delay... Methods and apparatus for ascertaining sensor signal delay...

2006-08-23

2010-06-15

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S250000, C359S199200, C359S214100, C359S224100

Reexamination Certificate

active

07738006

ABSTRACT:
In an electrophotographic (EP) device, methods and apparatus include determining a delay of one or more sensors (hsync) to accurately know when to start the process of scanning latent images. In one aspect, the sensor includes a leading and trailing edge defined along a direction of laser beam scan travel. Determining the delay includes learning a position of a laser beam on the sensor at a time when a controller connected to the sensor receives a signal from the sensor indicating the sensor is being sufficiently impinged upon by the laser beam. It also includes learning a latest possible position of the laser beam along the direction of laser scan travel where the laser beam can be turned on and still have the sensor assert a signal indicating it has been sufficiently impinged upon by the laser beam. Bi-directionally scanning EP devices are also disclosed, including controllers, photoconductors, sensors, etc.

REFERENCES:
patent: 5175570 (1992-12-01), Haneda et al.
patent: 6803938 (2004-10-01), Turner
patent: 6919977 (2005-07-01), Cannon et al.
patent: 2004/0119002 (2004-06-01), Bush et al.
patent: 2004/0119811 (2004-06-01), Bush et al.
patent: 2004/0119813 (2004-06-01), Bush et al.
patent: 2004/0125198 (2004-07-01), Klement
patent: 2006/0064019 (2006-03-01), Bush et al.
patent: 2006/0114309 (2006-06-01), Bush

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