LED array exposure device, controlling method thereof, and...

Details LED array exposure device, controlling method thereof, and... LED array exposure device, controlling method thereof, and...

2006-04-25

2006-04-25

Pham, Hai (Department: 2861)

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C347S247000

Reexamination Certificate

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07034858

ABSTRACT:
Corrected driving currents for a low gray level and a high gray levels are obtained respectively from a standard driving current by incorporating a beam spot area correction coefficient for variations of a beam spot area formed by a light beam emitted from a light-emitting element and transmitted through a lens array; an influence for a low gray level and a high gray level caused by one of a screen angle of pixel, a sensitivity of photoconductor, a surface temperature of photoconductor, and a developing bias voltage; and a light quantity correction coefficient. A driving current for driving the light-emitting element is obtained by using linear interpolation from the two corrected driving currents.

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patent: 5124732 (1992-06-01), Manzer et al.
patent: 5463473 (1995-10-01), Yamada et al.
patent: 5933682 (1999-08-01), Rushing
patent: 2002-067372 (2002-03-01), None
patent: 2002067372 (2002-03-01), None
patent: 2003182152 (2003-07-01), None

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