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Patent Searching and Data


Title:
IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2004328160
Kind Code:
A
Abstract:

To provide a controller unit optimally connectable to engine units with diversified performance and specifications used in the case of forming an image.

A multi-value error diffusion processing section 201 quantizes M pieces (M is an integer of 2 or over) of input image information are quantized into N pieces (N is an integer of 2 or over) of image data and are output. A dot processing section 202 binarizes the quantized N pieces of image data into binary image data with a relatively high resolution and outputs them. An output data selection section 204 selects whether to output the N pieces of image data or output the binary image data to a connected engine unit based on a selection instruction of a print mode adaptive output selection section 203.


Inventors:
HORIKOSHI HIROKI
Application Number:
JP2003117512A
Publication Date:
November 18, 2004
Filing Date:
April 22, 2003
Export Citation:
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Assignee:
CANON KK
International Classes:
B41J2/52; H04N1/387; H04N1/40; H04N1/46; H04N1/60; (IPC1-7): H04N1/40; B41J2/52; H04N1/387; H04N1/46; H04N1/60
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura