Title:
像担持体駆動方法
Document Type and Number:
Japanese Patent JP4782399
Kind Code:
B2
Abstract:
To provide an image carrier driving device capable of performing startup at the time of starting a motor so as not to cause phase shift in the variation of the angular velocity of each image carrier, and a tandem type image forming apparatus having the image carrier driving device.
A control means controls to raise the frequency f1 of a command signal stepwise for a predetermined time t1 at the time of starting the motor for driving the photoreceptor drum and make it constant after attaining predetermined frequency f2.
COPYRIGHT: (C)2006,JPO&NCIPI
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Inventors:
Toshiyuki Uchida
Yu Ehara
Noriaki Funamoto
Yu Ehara
Noriaki Funamoto
Application Number:
JP2004295287A
Publication Date:
September 28, 2011
Filing Date:
October 07, 2004
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G15/01; G03G21/00; G03G21/14
Domestic Patent References:
| JP2003177588A | ||||
| JP2001296753A | ||||
| JP2004109621A | ||||
| JP2004117397A | ||||
| JP9023695A | ||||
| JP2006072210A | ||||
| JP9146329A |
Attorney, Agent or Firm:
Shogo Honda
Toru Kabayama
Toru Kabayama