Patent ID: 8718523

Claim:
A heating and pressurizing device comprising: a roller configured to rotate about an axis of rotation while generating heat; a pressurizing member configured to contact a circumferential surface of the roller and to form a nip in order to heat and press and to convey a recording medium therebetween; a support member that supports the pressurizing member; a cam member that sets a distance between the axis of rotation and the support member by assuming an angular position; a motor configured to rotate the roller by executing a forward rotation and to rotate the cam member by executing a reverse rotation; an optical detector configured to detect a reference angular position of the cam member; a timing unit configured to control an angular position of the cam member by executing the reverse rotation of the motor for a predetermined period of time; an input unit for inputting information related to a basis weight of the recording medium or a type of the recording medium; and a controller configured to control the timing unit based on the reference angular position of the cam member detected by the optical detector and the information inputted in the input unit.