Patent ID: 9612206
Date: 2017-04-04
CPC Classifications: G01N,G07D

Claim:
1. A device for detecting a tape on a document, the device comprising: at least one light barrier comprising a first side opposite a second side; at least one light source, wherein one of the at least one light source is arranged on the first side of one of the at least one light barrier; at least one light receiver, wherein one of the at least one light receiver is arranged on the second side of the one light barrier opposite to the first side, wherein the one light barrier is configured to contact a document to prevent or reduce light that is emitted from the one light source on the first side of the one light barrier to be transmitted to the one light receiver on the second side of the one light barrier, and wherein the one light barrier, the one light source, and the one light receiver are on a same side of the document, and a control unit comprising a non-transitory storage medium encoded with a computer program and a data processing apparatus, wherein the computer program comprises instructions that when executed by the data processing apparatus cause the control unit to detect whether the tape is on the document based on an evaluation of a detected light intensity at the one light receiver.