Patent attributes
An image forming apparatus includes a first image carrying belt, a second image carrying belt, a first transfer unit, a second transfer unit, a fixing unit, and a controller. Each of the first and second image carrying belt carries a toner image on their respective surface. The first and second transfer unit transfer the toner image from the respective first and second image carrying belt to a first and second face of a recording medium, respectively. The fixing unit receives the recording medium directly from the second image carrying belt and fixes the toner image on the respective first and second face of the recording medium. The controller variably controls a transport speed of the second image carrying belt depending on types of the recording medium when the second image carrying belt transports the recording medium from the second transfer unit to the fixing unit.
