Method of and apparatus for preventing scanning line deviation i

Details Method of and apparatus for preventing scanning line deviation i Method of and apparatus for preventing scanning line deviation i

1988-11-14

1990-04-10

Shoop, Jr., William M.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Plural, diverse motor controls

318 85, 318603, 318625, 355 47, 355 48, G05B 1928

Patent

active

049163671

ABSTRACT:
An original drum and a recording drum are driven independently by individual synchronous motors. Encoders output respective rotation timing pulses (P.sub.a, P.sub.b) at every rotation of the recording drum and the original drum. If an interval separating the timing pulses (P.sub.a, P.sub.b) becomes smaller than a prescribed value, a scanning line deviation control circuit generates a motor control signal (T.sub.b) which interrupts the delivery of electrical power to the faster moving motor for a limited period such as to restore a correct relationship between the timing pulses.

REFERENCES:
patent: 3636364 (1972-01-01), Stempler et al.
patent: 3833843 (1974-09-01), Bossons
patent: 3997828 (1976-12-01), Bottcher et al.
patent: 4601568 (1986-07-01), Takano et al.
patent: 4722061 (1988-01-01), Carlisle et al.
patent: 4761597 (1988-08-01), Sasaki et al.

Affiliated with

Also associated with

Rating

Method of and apparatus for preventing scanning line deviation i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and apparatus for preventing scanning line deviation i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for preventing scanning line deviation i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2301038