Patent · US Expired

Photocopy monitoring system

US5077582A · kind A · utility

180Cited by
41References
49Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 20, 1989
Grant dateDec 31, 1991
Priority date
Expiry dateApr 20, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/2662
  • WIPO fieldOptics
  • WIPO sectorInstruments

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 counted paper. A controller receives the count signals and totals the counts. The controller transmits the total count to a central station through a modem after either a predetermined time or a predetermined count. Internal diagnostic signals in the printing device are intercepted as they are transmitted to an internal display device of the printing device and transmitted to the central computer through the modem.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.