Patent ID: 9547266
Date: 2017-01-17
CPC Classifications: G03G

Claim:
1. An image forming apparatus, comprising: a plurality of photosensitive drums; an intermediate transfer belt onto which toner images formed on the plurality of the photosensitive drums are primary transferred, respectively; a transfer roller that secondary transfers a toner image formed on the intermediate transfer belt onto a recording material; a fixing unit that heats the recording material and fixes the transferred toner image onto the recording material; a tray on which the recording material is stacked; a feed roller that feeds the recording material stacked on the tray to the transfer roller; a reverse roller that reverses the recording material onto which the toner image has been fixed by the fixing unit, and conveys the recording material; a conveyance roller that conveys the recording material conveyed by the reverse roller to the transfer roller; a motor that drives the reverse roller; and a processor that switches an image formation mode between a first mode in which a first photosensitive drum and a second photosensitive drum different from the first photosensitive drum among the plurality of the photosensitive drums are used to form the toner image, and a second mode in which the second photosensitive drum is used to form the toner image without using the first photosensitive drum, wherein the motor continuously drives the reverse roller while a toner image is formed on a first recording material fed by the feed roller and subsequently a toner image is formed on a second recording material that is different from the first recording material and conveyed by the conveyance roller, and in a case that the image formation mode for the first recording material is different from the image formation mode for the second recording material, the processor sets the image formation mode to the first mode while the toner images are formed on the first recording material and the second recording material.