Patent ID: 6282397
Filing Date: 2001-08-28
Classification: G03G

Abstract:
A transfer and fixing device for an electrophotographic image forming apparatus comprising:a primary transfer roller onto which a toner image formed on a photosensitive member is transferred from the photosensitive member by a difference of critical surface tension between the roller and the photosensitive member, the transferred toner image being transferred onto a sheet of printing paper by a difference of critical surface tension between the roller and the sheet of printing paper;a cleaning belt for grinding the surface layer of the primary transfer roller to remove deteriorated portions on the surface layer of the primary transfer roller by allowing the belt to press onto the surface of the primary transfer roller; andtwo rollers for allowing the cleaning belt to revolve, wherein the cleaning belt is positioned adjacent to the primary transfer roller between a first point at which the toner image is transferred onto the primary transfer roller from the photosensitive member and a second point at which the toner image is transferred onto the sheet of printing paper, with the cleaning belt being positioned before the second point in a direction of rotation of the primary transfer roller.