Track controller for a document processor

Details Track controller for a document processor Track controller for a document processor

1980-12-11

1983-05-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340674, G01V 904

Patent

active

043842020

ABSTRACT:
A controller monitors and controls the operation of the document transporting portions of a document processor. It employs sensors which detect the passage of the trailing edges of documents and timers which measure the time taken for a document to pass successive sensors. Whenever this time period is too long, the controller determines that the document being timed has jammed and provides signals to stop the operation of sections of the system in an orderly fashion designed to minimize the effects of jamming.

REFERENCES:
patent: 4231567 (1980-11-01), Ziehm
patent: 4268746 (1981-05-01), Schroeder
patent: 4275293 (1981-06-01), Chambors

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