Title:
画像形成装置
Document Type and Number:
Japanese Patent JP5532756
Kind Code:
B2
Abstract:
An image forming apparatus has a high-speed mode and a low-speed mode and includes a speed switch unit configured to select the high-speed mode or the low-speed mode by switching a rotation direction of a drive source. The speed switch unit includes a drive gear attached to a rotating shaft of the drive source; a first drive gear series transmitting a rotating power of the drive source upon rotation in a first direction to an image carrier; and a second drive gear series transmitting a rotating power of the drive source upon rotation in a second direction to the image carrier, the second drive gear series having a larger reduction ratio than the first drive gear series. The speed switch unit causes the drive gear to be selectively connected to the first drive gear series or the second drive gear series depending on the rotating direction of the drive source.
Inventors:
Fukushima Tatsuo
Katsumi Kumada
Nobuhiko Kita
Onuma spirit
Katsumi Kumada
Nobuhiko Kita
Onuma spirit
Application Number:
JP2009198660A
Publication Date:
June 25, 2014
Filing Date:
August 28, 2009
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G15/00; G03G21/00; G03G21/16; H02P29/00
Domestic Patent References:
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Foreign References:
| US5729779 | ||||
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| US20090035041 |
Attorney, Agent or Firm:
Shogo Honda
Toru Kabayama
Toru Kabayama