System and method for scanner control using thinning-out...

Details System and method for scanner control using thinning-out... System and method for scanner control using thinning-out...

2005-02-01

2005-02-01

Williams, Kimberly (Department: 2626)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S001500, C358S412000, C358S448000

Reexamination Certificate

active

06850343

ABSTRACT:
The present invention provides a scanner control method capable of being shared even by a printer which is relatively low in write speed as compared with the read speed. In the case where a printer having a relatively lower write speed than the read speed is connected, an original image reading operation is performed at a high read speed, but the original image on the same main scan line is read by a number of times, m, (e.g., m=2) corresponding to a magnification ratio between the read speed and the write speed while decreasing the read speed in a sub scan direction, and only the image data obtained from a single read of the main scan line out of the m times of read is outputted by a thinning-out processing. By so doing, there is performed a read operation substantially matching the low write speed without any change in the actual read speed of a read unit. In this way it becomes possible for a scanner to be shared even by a printer whose write speed is relatively low in comparison with the read speed.

REFERENCES:
patent: 5086346 (1992-02-01), Fujisawa
patent: 5396286 (1995-03-01), Ishizuka
patent: 5497192 (1996-03-01), Ishizuka
patent: 6486971 (2002-11-01), Kawamoto
patent: 7-023177 (1995-01-01), None
patent: 7-212574 (1995-08-01), None
patent: 11-289438 (1999-10-01), None

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