PHASE MANAGEMENT APPARATUS, SHEET PROCESSING APPARATUS AND PHASE MANAGEMENT METHOD

摘要

A phase management apparatus includes a control section configured to output a first signal for rotating a motor, and output the first signal at a first frequency higher than the frequency which is necessary for rotating the motor when the apparatus resumes from a power-saving mode; a drive circuit configured to store the information relating to the rotation phase of the motor, output a pulse signal to the motor according to the first signal output from the control section, receive the first signal output at the first frequency, and update the information according to the first signal; and a power control section configured to carry out a control of supplying power to the control section but not to the drive circuit in the power-saving mode and supplying power to both the control section and the drive circuit when the apparatus resumes from the power-saving mode.

主权项

1. A phase management apparatus, comprising:
a control section configured to output a first signal for rotating a motor, and the control section outputs the first signal at a first frequency higher than the frequency which is necessary for rotating the motor when the apparatus resumes from a power-saving mode; a drive circuit, which is a circuit that stores the information relating to the rotation phase of the motor and outputs a pulse signal to the motor according to the first signal output from the control section, configured to receive the first signal output at the first frequency and update the information according to the first signal; and a power control section configured to carry out a control of supplying power to the control section but not to the drive circuit in a power-saving mode and supplying power to both the control section and the drive circuit when the apparatus resumes from the power-saving mode.