Apparatus and method for controlling the apparatus

摘要

An apparatus for moving a unit to execute scanning includes a scanning unit including a motor, an encoder for outputting a signal according to movement of the unit, a detection unit for detecting a current supplied to the motor, a speed control unit for executing a speed control of the motor according to the signal output from the encoder and the current detected by the detection unit, a movement control unit for setting a threshold value, moving the unit by driving the motor, by using the speed control unit, and a current control unit for setting a value greater than the predetermined value according to the threshold value and value of the current detected by the detection unit at a predetermined timing during a time period while the unit is moving.

主权项

1. An apparatus comprising:
a current control unit configured to control supply of current to a motor being a driving source for moving a unit so that a value of the current to be supplied to the motor does not exceed a first threshold value; a first determination unit configured to determine whether at least one of a lowest, highest and average speed of the unit reaches a target speed during a predetermined time; and a setting unit configured to set a second threshold value higher than the first threshold value while the unit is being moved to an end position in a case where the at least one of the lowest, highest, and average speed of the unit is not determined to reach the target speed by the first determination unit, wherein, in a case where the second threshold value higher than the first threshold value is set by the setting unit, the current control unit supplies the current to the motor so that the value of the supplied current exceeds the first threshold and does not exceed the second threshold value while the unit is being moved to the end position after the predetermined time has elapsed since a start of the moving of the unit.