Photocopying – Projection printing and copying cameras – Focus or magnification control
Patent
1999-04-26
2000-12-05
Gray, David M.
Photocopying
Projection printing and copying cameras
Focus or magnification control
355 44, 355 59, 355 61, 355202, 355218, 358287, 358449, 399377, 395106, G03B 2752, G03B 1326, G03B 2736, H04N 140, G03G 1500
Patent
active
061574392
ABSTRACT:
A document copy system includes a preview sensor that is dedicated to document previewing and distinct from any other sensor that is involved in the document copying process. The preview sensor is preferably a two-dimensional sensor array that captures the outline of an entire document in parallel. The captured document outline is previewed on a display device relative to an actual print area that is defined by the copy system. In an enhanced embodiment of the copy system, the preview sensor captures an image that is printed on the document in addition to the outline of the document, so that the image of the document is also previewed relative to the print area. Providing a dedicated preview sensor that captures document position and image data in parallel enables real-time display of a document relative to the print area.
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Robuck Daniel
Rousseau Paul
Bindingnavele R.
Gray David M.
Hewlett--Packard Company
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