Image forming apparatus

摘要

An image forming apparatus includes a first heating rotator and a first pressing rotator forming a fixing nip fixing a non-fixed toner image formed in an image forming portion onto a sheet, a second heating rotator and a second pressing rotator forming a heating nip heating the fixed toner image on the predetermined sheet that has passed through the fixing nip, a first rubbing member keeping a range of the first heating rotator contactable with the sheet at a predetermined surface roughness by rubbing a surface of the first heating rotator, and a second rubbing member keeping a range of the second heating rotator contactable with the sheet at a surface roughness smaller than the predetermined surface roughness by rubbing a surface of the second heating rotator.

主权项

1. An image forming apparatus, comprising:
an image forming portion forming a toner image on a sheet; a first heating rotator and a first pressing rotator forming a fixing nip fixing the non-fixed toner image formed in the image forming portion onto the sheet; a second heating rotator and a second pressing rotator forming a heating nip heating the fixed toner image on a predetermined sheet that has passed through the fixing nip; a first rubbing member rubbing a range of a surface of the first heating rotator contactable with the sheet; a first contact/separate portion bringing the first rubbing member into contact with and keeping the first rubbing member away from the first heating rotator, the first contact/separate portion bringing the first rubbing member into contact with the first heating rotator in executing a first roughening process to the first heating rotator; a second rubbing member rubbing a range of a surface of the second heating rotator contactable with the sheet; and a second contact/separate portion bringing the second rubbing member into contact with and keeping the second rubbing member away from the second heating rotator, the second contact/separate portion bringing the second rubbing member into contact with the second heating rotator in executing a second roughening process to the second heating rotator, wherein surface roughness of the second heating rotator on which the second roughening process has been executed is smaller than surface roughness of the first heating rotator on which the first roughening process has been executed.