Patent ID: 11906924
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC B  G

Claim 3:
4. The image forming apparatus according to claim 1, further comprising a housing in which a conveyance path and a reconveyance path are formed, the conveyance path passing through the conveyance roller, the photosensitive drum, and the fuser, the reconveyance path being formed to guide the sheet having passed the fuser to a merge point where the reconveyance path joins the conveyance path, the merge point being located upstream of the conveyance roller in the sheet conveyance direction,
wherein the sensor is located downstream of the merge point in the sheet conveyance direction; and
wherein the controller is configured to:
in response to determining that the sensor detects the sheet when starting the warm-up process, determine that a jam of the sheet occurs, stop the warm-up process, and output a notification prompting removal of the sheet at which the jam occurs.