Patent ID: 6301452
Filing Date: 2001-10-09
Classification: G03G

Abstract:
An image forming apparatus comprising:an image bearing member;image forming means for forming an image on said image bearing member;an intermediate transfer member to which the image is transferred from said image bearing member, the image on said intermediate transfer member being transferred to a transfer material at a transfer position;detecting means for detecting a kind of the transfer material;conveying means for conveying the transfer material to said transfer position;wherein a time period between a time when the image starts to be formed on said image bearing member by said image forming means and a time when the image on said image bearing member formed by said image forming means is transferred to said intermediate transfer member and arrives at said transfer position is longer than a time period between a time when the kind of the transfer material is detected by said detecting means and a time when the transfer material arrives at said transfer position by said conveying means; andchangeover means for selectively changing over a first mode for forming the image on said image bearing member by said image forming means on a basis of the kind of the transfer material detected by said detecting means, and a second mode for forming the image on said image bearing member by said image forming means on a basis of a result of a detection by said detecting means in said first mode irrespective of whether the kind of the transfer material is detected by said detecting means or not.