Patent ID: 11966184
Assignee: CANON KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An image forming apparatus that forms an image on a recording medium, the image forming apparatus comprising:
a motor configured to drive a first member;
a second member;
a movement member configured to move between a first position and a second position, the first member and the second member being in contact with each other in a state where the movement member is located at the first position, the first member and the second member being separated from each other in a state where the movement member is located at the second position; and
a controller configured to:
receive an instruction to start a print job for forming the image on the recording medium,
after receiving the instruction, move the movement member from the second position to the first position,
in a case where the movement member is at the second position, not execute an initial operation, and in a case where the movement member moves from the second position to the first position, execute the initial operation in a state where the movement member is located at the first position, wherein, in the initial operation, the controller determines a phase of a rotor of the motor in a stopping state where the rotor stops based on a current flowing through a coil of the motor by supplying the current to the coil of the motor in the stopping state, and
control the current supplied to the coil so that the rotor in the stopping state is rotated based on the phase determined in the initial operation.