Detection of multiple emitter changes in a printer subsystem

Details Detection of multiple emitter changes in a printer subsystem Detection of multiple emitter changes in a printer subsystem

1979-10-19

1981-12-08

Sewell, Paul T.

Typewriting machines

Sheet or web

Including programmed-control-system for record-medium feed

364900, 400 61, 4006161, B41J 1142

Patent

active

043044972

ABSTRACT:
A data processing system or printer subsystem is provided with facilities for detecting emitter changes that have occurred during operating intervals. In a typical operation, a microprocessor initiates a command to a moving assembly, such as a forms feed assembly, then once the operation is initiated the microprocessor transfers to other program responsibilities, meanwhile periodically checking the status of the forms feed assembly. The forms feed assembly supplies emitter signals to the processor which are utilized by the microprocessor to determine whether or not any emitter changes have occurred during the intervals between the checking operations. The microprocessor has a stored data table and logic responsive to emitter signal conditions that had previously occurred (WAS) and that is further responsive to emitter signals that are presently occurring (IS) to supply an output in numbers of emitters indicative of both the extent and direction of movement of the assembly during the intervening interval.

REFERENCES:
patent: 3777128 (1973-12-01), Kirkham
patent: 4109311 (1978-08-01), Blum et al.
patent: 4146922 (1979-03-01), Brown et al.
patent: 4147967 (1979-04-01), Aiena
patent: 4153945 (1979-05-01), Actor et al.

Affiliated with

Also associated with

Rating

Detection of multiple emitter changes in a printer subsystem does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection of multiple emitter changes in a printer subsystem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of multiple emitter changes in a printer subsystem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-565680