Apparatus for monitoring letter closing devices

摘要

An apparatus for monitoring letter closing devices in mail handling machines in mail handling lines includes transport rollers receiving envelopes. A holding-down device is downstream of the transport rollers in envelope transport direction. A plow plate is downstream of the holding-down device. A deflector is disposed between the holding-down defice and the plow plate. A closing device is downstream of the plow plate. A relection light gate is disposed underneath the plow plate. The plow plate has a reflecting surface forming part of the reflection light gate.