Patent ID: 6229969
Filing Date: 2001-05-08
Classification: G03G,H04N

Abstract:
An image forming apparatus comprising:condition setting means for setting a condition for image formation;image forming means for forming an image;detection means for detecting density of the image formed by said image forming means; andcorrection means for correcting the condition set by said condition setting means on a basis of a detected result by said detection means,wherein said apparatus has a first image forming mode for forming an image using image forming patterns of a first type and a second image forming mode for forming an image using image forming patterns of a second type, andwherein said condition setting means sets the condition for image formation to a first condition in the first image forming mode and sets the condition for image formation to a second condition that is different from the first condition in the second image forming mode, andsaid correction means includes means for correcting the first condition on a basis of the detected result of the density of the image formed by using the image forming patterns of the first type and means for correcting the second condition on a basis of the detected result of the density of the image formed by using the image forming patterns of the first type.