| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To save the user's labor and time, and a processing time required for gradation correction, in an image forming apparatus wherein images are formed at different image forming speed according to the types of recording paper. <P>SOLUTION: An image forming means is configured to form an image pattern on an image carrier at a first image forming speed. A transfer means is configured to form a density measurement image on a recording paper by transferring the image pattern to the recording paper at the first image forming speed. A determination means is configured to read the image and determine density correction characteristics. A measuring means is configured to measure the density value of the image pattern formed on the image carrier at the first image forming speed by applying the density correction characteristics. A storage means is configured to store the measured density value of the image pattern as a reference density value. A creating means is configured to create modification data to modify the density correction characteristics for a second image forming speed, on the basis of a difference between the density value of the image pattern formed on the image carrier at the second image forming speed by applying the density correction characteristics, and the reference density value stored in the storage means. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
