Patent ID: 6334039
Filing Date: 2001-12-25
Classification: G03G

Abstract:
An image forming apparatus, comprising:a belt configured to convey a sheet-formed medium;a plurality of recording units arranged in a conveying direction of said sheet-formed medium and respectively including rotating image bearing members configured to perform a process of forming a latent image on each surface of said image bearing members, developing said latent image into a toner image with toner, and transferring said toner image onto said sheet-formed medium carried on the belt;a detection device configured to detect arbitrary toner images formed at said plurality of recording units and then directly transferred onto said belt; anda contact and separation device configured to enable said belt to contact and separate from each of said image bearing members;wherein said contact and separation device is configured to be driven so as to separate said belt from each of said image bearing members before said arbitrary toner images transferred onto said belt contact respective following recording units.