Patent ID: 9298135
Filing Date: 2016-03-29
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: an input-side rotator configured to be rotated continuously by a rotational force transmitted from a driving source; an intermediate rotator configured to be rotated by a rotational force transmitted from the input-side rotator: an output-side rotator configured to be rotated by a rotational force transmitted from the intermediate rotator; a developer conveying portion configured to be rotated by a rotational force transmitted from the output-side rotator and convey developer by being rotated; a first intermittent transmission mechanism including an actuator and a switch transmission mechanism that is selectively switched between a first connection state and a first non-connection state; a second intermittent transmission mechanism configured to be selectively switched between a second connection state and a second non-connection state while the intermediate rotator is rotating; and a control portion configured to output a control signal to the actuator, wherein the actuator operates based on the control signal input thereto, the first connection state is a state in which the rotational force of the input-side rotator is transmitted to the intermediate rotator based on an operation of the actuator, the first non-connection state is a state in which the rotational force of the input-side rotator is not transmitted to the intermediate rotator, the second connection state is a state in which the rotational force of the intermediate rotator is transmitted to the output-side rotator, the second non-connection state is a state in which the rotational force of the intermediate rotator is not transmitted to the output-side rotator, the second intermittent transmission mechanism includes: the second intermittent transmission mechanism enters the second connection state each time the engaging portion is engaged with any of the engaged portions, and enters the second non-connection state each time the outer circumferential surface of the restricting portion fits in the recess of any restricted portion.