Electrophotography – Image formation – Photoconductive member
Patent
1998-07-13
1999-12-07
Grimley, Arthur
Electrophotography
Image formation
Photoconductive member
399251, G03G 1500, G03G 1511
Patent
active
059997753
ABSTRACT:
A heating roller driving device for a heating roller of an image forming apparatus. The heating roller driving device includes a motor for supplying the heating roller with a driving force for the heating roller to contact or separate from a photosensitive belt. A motor controller is provided for controlling the operation of the motor, and a main controller is included for providing the motor controller with a predetermined command to operate the motor. A lever is pivotably installed on the shaft of the heating roller for moving the heating roller to contact or separate from the photosensitive belt, a roller gear is installed at one end of the shaft of the heating roller for receiving the driving force transferred from the motor, a clutch is installed at a predetermined location in the vicinity of the heating roller for pushing the lever or for releasing the lever from the pushed state to in turn move the heating roller to contact or separate from the photosensitive belt by the driving force transferred from the motor, and a plurality of motor gears is installed on the output shaft of the motor for selectively transferring the driving force of the motor to either the roller gear or the clutch depending on a position of the clutch and in turn the heating roller. Since the heating roller is moved to contact or separate from the photosensitive belt by a single motor, the driving device has advantages in that the entire system structure can be simplified and the manufacturing cost of the apparatus can be lowered.
REFERENCES:
patent: 5689764 (1997-11-01), Fukuchi et al.
patent: 5852761 (1998-12-01), Marcelletti et al.
Grainger Quana
Grimley Arthur
Samsung Electronics Co,. Ltd.
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