Single automatic document feeder sensor for media leading edge and top cover being opened detection

摘要: A single plate flatbed scanner utilizing a sensor to detect both opening of lid covering the and leading edge an automatically fed document. The includes contact glass defining scanning area where document be scanned may manually positioned. An automatic feeder (ADF) scan window ADF-fed documents are is defined within area. image maintained at fixed position in ADF while documents. To document, moves under so as Since same plate, inadvertently left on blocks prevents utilized which uncovers allow manual placement Detecting cover used determine whether or not has been after scanning. also initiate process precise time reaches window.