Enlargement and reduction apparatus for an image forming apparat

Details Enlargement and reduction apparatus for an image forming apparat Enlargement and reduction apparatus for an image forming apparat

1995-01-17

1998-06-09

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358451, 399196, 382298, H04N 146

Patent

active

057643709

ABSTRACT:
An image forming apparatus is provided with a zoom processing circuit, a scanning optical system and an enlarging/reducing circuit. The enlargement/reduction of the formed image in the main scanning direction is performed by the zoom processing circuit and an enlarging/reducing circuit, and the enlargement/reduction in the sub scanning direction is performed by the scanning speed of the scanning optical system and the enlarging/reducing circuit. When a magnification within a magnification range depending on the zoom processing circuit and the scanning optical system is specified, the enlargement/reduction of the input image data by the enlarging/reducing circuit is not performed.

REFERENCES:
patent: 5189529 (1993-02-01), Ishiwata et al.
patent: 5398117 (1995-03-01), Suzuki et al.
patent: 5535007 (1996-07-01), Kim

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