Photocopy monitoring system and method for monitoring copiers

Details Photocopy monitoring system and method for monitoring copiers Photocopy monitoring system and method for monitoring copiers

1991-07-31

1993-02-02

Moses, Richard L.

Photocopying

Contact printing

Light boxes

355209, 355308, 34082506, 235385, G03G 1500

Patent

active

051841797

ABSTRACT:
A system for monitoring a variable output paper processing device is provided. The monitoring system includes a counter which counts the number of papers processed and provides a count signal for each paper counted. A controller receives the count signals and totals the counts. The controller includes an internal clock as well as an interrupt signal generator. Upon receipt of the count signal, the interrupt generator generates an interrupt signal starting the internal clock. The internal clock has a duration of a predetermined value larger than random noise signals. The controller compares the internal clock signal to the count signal and determines whether a valid count has occurred. The controller includes a CPU and RAM which are coupled by a PAL which isolates the RAM from the CPU when a voltage supplied to the CPU and PAL falls below a predetermined level.

REFERENCES:
patent: 3638191 (1968-01-01), Mann
patent: 3656145 (1969-03-01), Proops
patent: 3842408 (1972-08-01), Wells
patent: 3858181 (1973-10-01), Goldsby et al.
patent: 3984032 (1974-05-01), Hyde et al.
patent: 3997873 (1976-12-01), Thornton
patent: 4071911 (1976-04-01), Mazur
patent: 4086434 (1976-09-01), Bocchi
patent: 4124887 (1977-04-01), Johnson et al.
patent: 4144550 (1977-05-01), Donohue et al.
patent: 4160255 (1979-07-01), Kobayashi
patent: 4167322 (1979-09-01), Yano
patent: 4199100 (1980-04-01), Wostl et al.
patent: 4283709 (1981-08-01), Lucero et al.
patent: 4300040 (1981-11-01), Gould et al.
patent: 4314334 (1982-02-01), Daughton et al.
patent: 4358756 (1982-11-01), Morel et al.
patent: 4369442 (1983-01-01), Werth et al.
patent: 4455453 (1984-06-01), Parasekvakos et al.
patent: 4456790 (1984-06-01), Soyack
patent: 4477901 (1984-10-01), Braband
patent: 4496237 (1985-01-01), Schron
patent: 4497037 (1985-01-01), Kato et al.
patent: 4501485 (1985-02-01), Tsudaka
patent: 4506974 (1985-04-01), Sugiura et al.
patent: 4509851 (1985-04-01), Ippolito et al.
patent: 4510491 (1985-04-01), Prato
patent: 4523299 (1985-06-01), Donohue et al.
patent: 4549044 (1985-10-01), Durham
patent: 4574283 (1986-03-01), Arakawa
patent: 4578538 (1986-03-01), Pascucci et al.
patent: 4583834 (1986-04-01), Seko et al.
patent: 4595921 (1986-06-01), Wang et al.
patent: 4611205 (1986-09-01), Eglise
patent: 4630042 (1986-12-01), Kawasaki et al.
patent: 4634258 (1987-01-01), Tanaka et al.
patent: 4654800 (1987-03-01), Hayashi et al.
patent: 4658243 (1987-04-01), Kimura et al.
patent: 4708469 (1987-11-01), Bober et al.
patent: 4709149 (1987-11-01), Takahashi et al.
patent: 4723212 (1988-02-01), Mindrum et al.
patent: 4752950 (1988-06-01), Le Carpentier
patent: 4766548 (1988-08-01), Cedrone et al.
Abstract, Japanese Kokai Published Application 59-116761, published Jul. 5, 1984.
Abstract, Japanese Kokai Published Application 56-27161, published Mar. 16, 1981.
Abstract, Japanese Kokai Published Application 59-81656, published May 11, 1984.
Abstract, Japanese Kokai Published Application 59-91456, published May 26, 1984.

Affiliated with

Also associated with

Rating

Photocopy monitoring system and method for monitoring copiers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photocopy monitoring system and method for monitoring copiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photocopy monitoring system and method for monitoring copiers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-9928