Device for digital detection of a document has stop movable between document and sensor for pre-scanning, enabling associated document lines to be projected onto pre-scan sensor areas

摘要

The device has a radiation source, a flat CCD sensor (12) and a document transport unit. At least one stop (10) can be moved to an in-use position between the document and sensor for pre-scanning and to a stowed position for main scanning. The in-use stop covers a sensor area in the read-out direction (20) between sensor pre-scan areas and at least one read-out line, whereby associated document lines can be projected onto pre-scan sensor areas. Independent claims are also included for the following: a method of digitally detecting a document.