ANORDNING FOR ATT REKNA PAPPERSARK

摘要

There is provided an apparatus for detecting abnormal feeding of sheets for use with a sheet counting machine. The apparatus includes light emitting devices for projecting light to end portions of the sheet in the course of turning-over thereof, and optoelectro transducing elements for receiving light resulting from the light incident on the end portions of the sheet and for issuing outputs in response to the amount of light received therein. The apparatus has a function of detecting abnormal feeding of the sheet from the outputs of the optoelectro transducing elements and of separating sheets which have been turned over in response to abnormal feeding of the sheet.