Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Plural – diverse motor controls for different motors
Patent
1986-04-28
1989-05-09
Ro, Bentsu
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Plural, diverse motor controls for different motors
318 53, 318 67, 318 37, 318 41, H02P 768
Patent
active
048292176
ABSTRACT:
A safety device for use in a recording apparatus controls the on/off operation and prevents the malfunction of motors for driving a gear flange to rotate a light sensitive drum and for driving an actuating gear and other driving members in accordance with a signal indicative of the reference rotational frequency received from an oscillator and a signal indicative of the rotational frequency of each motor. A motor control circuit is used including motor drivers for controlling the operation of said motors and a fault detection circuit for detecting the malfunction of said motors by comparing an adder output indicative of said motors' rotational frequencies with threshold values in a comparator, thereby ascertaining the long-term use of the light sensitive drum.
REFERENCES:
patent: 2418134 (1947-04-01), Mitchell
patent: 3497778 (1970-02-01), Gerber
patent: 3832616 (1974-08-01), Vinner
patent: 4169681 (1979-10-01), Kato
patent: 4186619 (1980-02-01), Nissen et al.
patent: 4425036 (1984-01-01), Kameyama et al.
patent: 4426149 (1984-01-01), Kuemmel et al.
Kameyama Toru
Miyagi Ken
Canon Kabushiki Kaisha
Ro Bentsu
LandOfFree
Device for controlling movement of a rotating element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for controlling movement of a rotating element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for controlling movement of a rotating element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-91424