Copier document sensing and control system

Details Copier document sensing and control system Copier document sensing and control system

1977-05-27

1979-01-02

Schacher, Richard A.

Sheet feeding or delivering

Feeding

With means to align sheet

271259, 271265, B65H 904

Patent

active

041324013

ABSTRACT:
A document sensing and control system for a document handling system for feeding documents across the imaging station of a copier. At a document input area two document sensors are centrally positioned respectively at the upstream and downstream sides of a pre-registration gate to sense the presence or absence of documents to control the document handling system in a desired manner during its operating cycle. Protection is provided, without requiring additional sensors, against improper insertion of documents into the document handling unit, over or under sized documents, document misfeeding, and lifting of the document handling unit away from the platen.

REFERENCES:
patent: 3310304 (1967-03-01), Foias
patent: 3674363 (1972-07-01), Ballen
patent: 3970384 (1976-07-01), Yamamoto

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