Patent ID: 9128424
Filing Date: 2015-09-08
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a body casing; an image carrier configured to carry thereon a developer image; an endless belt configured to be rotated while contacting the image carrier; a first cleaning roller including a roller shaft which is made of metal, and a rubber roller; a power supply configured to apply a bias to the first cleaning roller; and a backup roller made of metal and arranged to oppose the first cleaning roller with the endless belt being interposed therebetween, wherein the endless belt has a nip portion at which both the backup roller and the first cleaning roller contact the endless belt while opposing each other, wherein the first cleaning roller contacts the endless belt at a more upstream side than the nip portion in a moving direction of the endless belt, and wherein the backup roller is connected to the body casing to be grounded.