Image recording apparatus inhibiting recording of abnormally-fed

Details Image recording apparatus inhibiting recording of abnormally-fed Image recording apparatus inhibiting recording of abnormally-fed

1989-12-18

1992-07-21

Bollinger, David H.

Sheet feeding or delivering

Feeding

With means to interrupt feeding

271265, 271272, B65H 712

Patent

active

051316480

ABSTRACT:
An image recording apparatus inhibiting recording of abnormally-fed sheets includes conveying structure for conveying a sheet along a predetermined conveying path. Detection circuitry is provided for detecting a dimension of a sheet being fed by the conveying structure. A memory is provided for storing a reference value corresponding to a dimension of a sample sheet detected by the detection circuitry. Judging circuitry is provided for judging the abnormal feeding of a sheet by comparing the dimension of the sheet detected by the detection circuitry with the reference value stored in the memory. Reading circuitry is provided for reading information from the sheet, and a control circuit is provided for inhibiting the reading of the information from a sheet which is judged to have been abnormally fed, but for allowing the reading of the information from a sheet which has been judged to have been normally fed. Preferably, the detected dimension is the thickness and/or the length of the sheet.

REFERENCES:
patent: 4243983 (1981-01-01), Vyas
patent: 4283621 (1981-08-01), Pembroke
patent: 4491929 (1985-01-01), Ikoma et al.
patent: 4577956 (1986-03-01), Klosterhuber
patent: 4605926 (1986-08-01), Onishi et al.
patent: 4819034 (1989-04-01), Weinzierl
patent: 4894783 (1990-01-01), Milne

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