Image forming apparatus with selectively controlled resolution

Details Image forming apparatus with selectively controlled resolution Image forming apparatus with selectively controlled resolution

1993-12-13

1997-06-10

Frahm, Eric

Facsimile and static presentation processing

Facsimile

Recording apparatus

358298, 358448, 395109, 395114, 347129, H04N 129, H04N 140, G06F 1500, G01D 1514

Patent

active

056381832

ABSTRACT:
An image forming apparatus arranged to synthesize a plurality of images having different numbers of steps of tone representation, and thereafter form an image at different degrees of resolution corresponding to the respective numbers of steps of tone representation. According to one representative embodiment, an image forming apparatus inputs first and second image information to be synthesized with each other, the number of tone-levels of the second image information being less than the number of such levels of the first information. An image synthesizer, which is capable of changing an image forming resolution, forms a synthesized image from the first and second image information, and a controller controls the image forming resolution of the image synthesizer such that the first image information is formed at a first resolution and the second information is formed at a second resolution higher than the first resolution.

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patent: 5041915 (1991-08-01), Hirata et al.
patent: 5045869 (1991-09-01), Isaka et al.
patent: 5465165 (1995-11-01), Tanio et al.

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