Image forming apparatus

摘要

An image forming apparatus comprising a conveyance path of recording material comprises a door, when opened, the inside of the apparatus is exposed, and an interlock circuit which detects opening/closing state of the door. The detection unit of the door is arranged on the conveyance path. At the arranged position, the image forming apparatus comprises a registration sensor for detecting presence and absence of the recording material and delivery sensor. The CPU controls pressure to the recording material S passing the fixing nip portion formed by a pair of rollers arranged on the conveyance path. Also, the CPU decides whether the recording material exists at the fixing nip portion based on the respective detection result from the registration sensor and the delivery sensor.

主权项

1. An image forming apparatus comprising:
a conveyance path of a recording material provided in an inside of the image forming apparatus; a door which is provided such that the inside of the apparatus including the conveyance path is exposed, a door opening/closing detection unit configured to detect opening or closing of the door; a pair of rotation members which forms a nip portion for holding and conveying the recording material on the conveyance path; a driving unit configured to separate one rotation member of the pair of rotation members from the other rotation member; a power unit configured to supply power to the driving unit, wherein the power unit is configured to supply power to the driving unit even in a case where the door is opened; a decision unit configured to decide whether or not the recording material exists at the nip portion; and a control unit configured to control a pressurized state and a pressure releasing state of the nip portion of the pair of rotation members; wherein the control unit is configured to control to release pressure at the nip portion in a case where the door opening is detected and the recording material exists at the nip portion.