Rotation abnormality detecting device for use in image forming a

Details Rotation abnormality detecting device for use in image forming a Rotation abnormality detecting device for use in image forming a

1995-07-20

1997-11-18

Ramirez, Nestor R.

Electrophotography

Diagnostics

Fixing

399 36, G03G 1520

Patent

active

056897561

ABSTRACT:
An image forming apparatus includes a process unit provided detachably attachable to the apparatus; a driving source provided inside the apparatus and outside the process unit; a power transmitter to transmit a driving force from the driving source; a rotary member provided inside the process unit, the rotary member being rotated by the driving force from the driving source transmitted through the power transmitter. The apparatus further includes a detector to detect a state of rotation of the rotary member, and to output a signal corresponding to the state of rotation of the rotary member; and a judging member to judge a rotation abnormality of the rotary member on the basis of the signal output from the detector.

REFERENCES:
patent: 4365888 (1982-12-01), Hosaka et al.
patent: 4577953 (1986-03-01), Narukawa
patent: 4748555 (1988-05-01), Miyake et al.
patent: 5049938 (1991-09-01), Ueda
patent: 5225870 (1993-07-01), Tanimoto et al.
patent: 5455656 (1995-10-01), Covert et al.

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