Optical image scanner with moveable calibration target

Details Optical image scanner with moveable calibration target Optical image scanner with moveable calibration target

2003-04-18

2008-10-07

Haskins, Twyler L. (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Measuring, testing, and calibrating

C358S505000, C358S501000, C358S461000, C250S368000

Reexamination Certificate

active

07433097

ABSTRACT:
A scanner has a calibration target that can be moved in front of the scanline during a scan. This enables multiple calibrations during a scan. A full-color calibration can be performed during scanning without the need for a separate array of photosensors. Scanning can start as soon as the lamp provides sufficient light for scanning, without waiting for the lamp to stabilize. It is not necessary to keep the lamp on, or to keep the lamp warm.

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United Kingdom Search Report dated Aug. 9, 2004.
Kurt E. Spears, Optical Image Scanner With Lens Array That Are Non-Perpendicular to the Image Being Scanned. HP Pending Application 10011001-1, U.S. Appl. No. 09/842,306, filed Apr. 25, 2001, 18 pages.
Kurt E. Spears, Optical Image Scanner With Color and Intensity Compensation During Lamp Warmup. HP Pending Application 10007856-1, U.S. Appl. No. 09/772,714, filed Jan. 30, 2001, 33 pages.

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