Title:
画像読取装置及び画像読取装置の制御方法
Document Type and Number:
Japanese Patent JP5596946
Kind Code:
B2
Abstract:
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.
Inventors:
Tomoshi Nishida
Kobayashi 伸恒
雪浦 Shin-ichi
Hideyuki Kido
Ryoji Kayatani
Kobayashi 伸恒
雪浦 Shin-ichi
Hideyuki Kido
Ryoji Kayatani
Application Number:
JP2009182890A
Publication Date:
September 24, 2014
Filing Date:
August 05, 2009
Export Citation:
Assignee:
Canon, Inc.
International Classes:
H04N1/04; G03B27/50; H02P7/288; H04N1/10; H04N1/107
Attorney, Agent or Firm:
Yasunari Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Hideji Kimura
Shimoyama 治
Yukimitsu Nagagawa
Shiro Takayanagi
Yasuhiro Otsuka
Hideji Kimura
Shimoyama 治
Yukimitsu Nagagawa