Phase lock font position and impact hammer timing control

Details Phase lock font position and impact hammer timing control Phase lock font position and impact hammer timing control

1977-06-10

1978-03-21

Coren, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 9314, 364900, B41J 918

Patent

active

040796701

ABSTRACT:
A timing and control circuit for a wide spanning impact hammer used in a digital printer can be fabricated by using a phase lock loop oscillator driven by a character pulse clock to output a plurality of timing pulses during the character pulse width. Appropriate intervals are selected from the timing pulses to generate a plurality of shifted timing pulses to be used as inputs to logic circuitry. Combination of the shifted timing pulses and logic circuitry together with control commands from a printer controller, can be used to generate a hammer trigger and hammer reset pulse. The hammer trigger and reset pulses are used in a conventional hammer matrix to fire the multiple spanning hammers at the appropriate times.

REFERENCES:
patent: 2993437 (1961-07-01), Dener et a.
patent: 3286625 (1966-11-01), Petit
patent: 3408633 (1968-10-01), Shimabukuro
patent: 3582897 (1971-01-01), Marsh
patent: 3795186 (1974-03-01), Curtiss et al.
patent: 3827357 (1974-08-01), Mahoney
patent: 3921517 (1975-11-01), Barconb et al.
patent: 3952648 (1976-04-01), Sery et al.

Affiliated with

Also associated with

Rating

Phase lock font position and impact hammer timing control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase lock font position and impact hammer timing control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase lock font position and impact hammer timing control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-565489