Motor control apparatus and image forming apparatus having plurality of activation modes
AssigneeCanon Kabushiki Kaisha
InventorMasatoshi Itoh
Life of this patent
Estimating the term…
Abstract
A motor control apparatus includes: a motor configured to drive a load; and a control unit configured to control the motor. The control unit is configured to, when activating the motor, determine whether a predetermined condition for determining that fluctuation in magnitude of the load occurs is satisfied, activate the motor in a first mode when the predetermined condition is satisfied, and activate the motor in a second mode when the predetermined condition is not satisfied, and the first mode is a mode in which an increase in rotation speed of the motor is gentler than an increase in rotation speed of the motor in the second mode.
Claims19
A motor control apparatus comprising:
- a motor configured to drive a load;
- and
- a control unit configured to control the motor, wherein
- the control unit is configured to, when activating the motor, determine whether a predetermined condition for determining that fluctuation in magnitude of the load occurs is satisfied, activate the motor in a first mode when the predetermined condition is satisfied, and activate the motor in a second mode when the predetermined condition is not satisfied, and
- the first mode is a mode in which an increase in rotation speed of the motor is gentler than an increase in rotation speed of the motor in the second mode.
A motor control apparatus comprising:
- a motor configured to drive a load;
- and
- a control unit configured to control the motor,
- the motor control apparatus configured to activate the motor in a first mode or a second mode, wherein
- load torque of the motor in the second mode is greater than load torque of the motor in the first mode, and
- the first mode is a mode in which an increase in rotation speed of the motor is gentler than an increase in rotation speed of the motor in the second mode.
An image forming apparatus comprising:
- a rotation member configured to convey a sheet along a conveyance path;
- an image forming unit configured to form an image on the sheet conveyed through the conveyance path;
- a motor configured to drive the rotation member or the image forming unit;
- and
- a control unit configured to, when activating the motor, determine whether a predetermined condition for determining that fluctuation in magnitude of a load of the motor occurs is satisfied, activate the motor in a first mode when the predetermined condition is satisfied, and activate the motor in a second mode when the predetermined condition is not satisfied, wherein
- the first mode is a mode in which an increase in rotation speed of the motor is gentler than an increase in rotation speed of the motor in the second mode.
Dependencies are inferred from the claim text.