发明名称 Image recording apparatus inhibiting recording of abnormally-fed sheets
摘要 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.
申请公布号 US5131648(A) 申请公布日期 1992.07.21
申请号 US19890452116 申请日期 1989.12.18
申请人 CANON KABUSHIKI KAISHA 发明人 ITO, MASAHIKO
分类号 B65H7/06;B65H7/20;B65H29/60;G03B27/46;G03G15/00;G06K13/067;G06K17/00 主分类号 B65H7/06
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