| 摘要 |
An inserter is disclosed having an insertion station and a feeding mechanism for feeding an envelope to the insertion station with the bottom edge of the envelope leading and the envelope flap in an open position and trailing, envelope opening mechanism at the insertion station and sheet feeding mechanism. A sensor detects the leading edge of the envelope as it is fed to the insertion station and, in response, causes the envelope opening mechanism to open the envelope after its arrival at the insertion station. The sensor also detects whether the envelope flap, when the envelope is waiting at the insertion station, is not in its open position and, when this is the case, it terminates operation of the envelope feeding mechanism and sheet feeding mechanism for the next envelope and sheet.
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