Title:
画像形成装置
Document Type and Number:
Japanese Patent JP5003420
Kind Code:
B2
Abstract:
An image forming apparatus including photoconductor drums corresponding to colors, motors, gears to transmit each rotation of the motors to each of the photoconductor drums, each of two gears comprising a portion to be detected intermittently continuing in a circumferential direction at a position having same radius centering around a rotary shaft of the gears, a pair of phase sensors to output detection signals of signal logics according to an existence or a non-existence of the portion to be detected at a point symmetric position centering around the rotary shaft of each of two gears and a control unit to calculate a rotation phase difference between each of the gears based on a logical combination of the detection signals which are output from the pair of phase sensors and to control the motors so as to synchronize rotation of each of the gears based on the calculated rotation phase difference.
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Inventors:
Yoshifumi Sasamoto
Hiroyuki Watanabe
Tadayuki Ueda
Ryuji Okutomi
Akifumi Isobe
Takashi Nara
Atsushi Onishi
Hiroyuki Watanabe
Tadayuki Ueda
Ryuji Okutomi
Akifumi Isobe
Takashi Nara
Atsushi Onishi
Application Number:
JP2007292022A
Publication Date:
August 15, 2012
Filing Date:
November 09, 2007
Export Citation:
Assignee:
Konica Minolta Business Technologies Co., Ltd.
International Classes:
G03G15/00; G03G15/01; G03G21/14
Domestic Patent References:
| JP2007139941A | ||||
| JP2007101890A |
Attorney, Agent or Firm:
Gwangyang International Patent Office
Hiroshi Arafune
Hiroshi Arafune