Document feed jam detector for a document reading apparatus

Details Document feed jam detector for a document reading apparatus Document feed jam detector for a document reading apparatus

1979-10-25

1981-05-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

271259, 340674, B65H 700

Patent

active

042687462

ABSTRACT:
The movement of a document through a transport system is simulated electronically and compared to the actual movement of the document to detect a document feed jam.

REFERENCES:
patent: 3603680 (1971-09-01), Barton
patent: 3778629 (1973-12-01), Terryn
patent: 4026543 (1977-05-01), Lechere

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