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Title:
METHOD OF DETERMINING IMAGE FORMING CONDITION, IMAGE FORMING APPARATUS AND CONTROL METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2011048193
Kind Code:
A
Abstract:

To provide a method of determining image forming conditions, an image forming apparatus and a control method of the image forming apparatus to grasp show-through characteristics of a medium to be used and reproducibility of a character, thin line and bar-code to reduce show-through and maintain reproducibility of the character, thin line and bar-code.

The image forming apparatus prints a test pattern on a printed face of a printing medium by a printing section, reads the printed test pattern from a non-printed face opposite to the printed face by a reading section, and determines the image forming conditions.The image forming apparatus compares a first read density of each of a plurality of patterns read by the reading section from the non-printed face, the plurality of patterns being arranged on the test pattern, and respectively printed on the printed face under a plurality of image forming conditions by the printing section, with a first density threshold that satisfies a show-through concentration on the non-printed face, and based on the comparison result, determines the image forming conditions so that the first read density does not exceed the first density threshold as image forming conditions for forming an image on the printing medium by the image forming apparatus.


Inventors:
ITAGAKI TOMOHISA
Application Number:
JP2009197234A
Publication Date:
March 10, 2011
Filing Date:
August 27, 2009
Export Citation:
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Assignee:
CANON KK
International Classes:
G03G15/00; H04N1/19; H04N1/407
Domestic Patent References:
JP2004106239A2004-04-08
JP2007144684A2007-06-14
JP2008000931A2008-01-10
JPH06161093A1994-06-07
JP2009078457A2009-04-16
JP2008275991A2008-11-13
JP2007130924A2007-05-31
JPH0930054A1997-02-04
JP2004106239A2004-04-08
JP2007144684A2007-06-14
JP2008000931A2008-01-10
JPH06161093A1994-06-07
JP2009078457A2009-04-16
JP2008275991A2008-11-13
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu



 
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