Drive

The transport/fusing motor drives the hot roller. However, the paper exit roller [A] is controlled by the duplex motor [B]. This is because the duplex motor controls paper exit and feed in the duplex.

The paper exit sensor [C] detects the trailing edge of the paper to determine the stop timing for the transport/fusing motor, reverse timing, and stop timing for the duplex motor. It also checks whether a paper jam occurs at the fusing unit or paper exit.

The fusing stripper pawl solenoid [D] is connected to the stripper pawl, and it detaches the stripper pawl from the hot roller unless it is necessary to contact. This function makes the warm-up time shorter because the fusing lamp does not have to heat up both the hot roller and the fusing stripper pawl. At the same time, this solenoid and pawl can decrease the probability that a paper twists about the hot roller because the stripper pawl can detach the paper from the hot roller steady due to the fusing pawl solenoid operation.