Driving device and fixing device
AssigneeRicoh Company, Ltd.
InventorsJunichi Murano, Kazuyoshi Matsumoto, Katsunori Shoji, Osamu Takashima, Toshiyuki Uchida, Kiyoshi Tsukamura
Life of this patent
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Abstract
A driving device, which can maintain a sufficient rated torque of the non-magnetization type electromagnetic clutch, comprises a driving motor and a driving gear. The driving motor and the driving gear are connected by a non-magnetization type electromagnetic clutch. The electromagnetic clutch comprises a driving shaft, wherein the driving shaft of the electromagnetic clutch is made of non-magnetic material. Because the driving shaft is made of non-magnetic material, therefore the magnetic field of the permanent magnet is not adversely affected or disordered, and a stable rated torque can be achieved.
Claims10
A driving device, comprising:
- a driving motor;
- and
- a driving gear, wherein the driving motor and the driving gear are connected by an electromagnetic clutch, said electromagnetic clutch being configured to disengage the driving motor and the driving gear when an electromagnet of the electromagnetic clutch is supplied with current, said electromagnetic clutch comprises a driving shaft, wherein said driving shaft is made of a non-magnetic material.
A fixing device, for fixing a toner image on a transferring recording medium, comprising a driving device including a driving motor and a driving gear that are connected by an electromagnetic clutch, said electromagnetic clutch being configured to disengage the driving motor and the driving gear when an electromagnet of the electromagnetic clutch is supplied with current, said electromagnetic clutch comprises a driving shaft made of a non-magnetic material.
Dependencies are inferred from the claim text.