US Patent No. 9,291,982

DRIVING TRANSMISSION DEVICE AND IMAGE FORMING APPARATUS


Patent No. 9,291,982
Issue Date March 22, 2015
Title Driving Transmission Device And Image Forming Apparatus
Inventorship Shuhei Hamada, Yokohama (JP)
Yuri Mori, Tokyo (JP)
Kota Kiyama, Kawasaki (JP)
Toru Miyazawa, Kawasaki (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 9,291,982

1. A driving transmission device comprising:
a motor;
a first pulley to be rotated by the motor;
a second pulley connected to a rotating member;
an endless belt wound on the first pulley and the second pulley;
a dielectric layer provided between the endless belt and the first pulley and between the endless belt and the second pulley;
and

a power supply unit configured to apply a voltage to the first pulley,
wherein the first pulley, the endless belt, and the second pulley are connected in series,
wherein a length by which the endless belt is wound on the second pulley is larger than a length by which the endless belt
is wound on the first pulley, and

wherein a voltage applied to the second pulley is lower than the voltage applied to the first pulley.