Canon FB1200S manual

WARNING • The maximum allowable size for scanning is 8.5 x 11.69 inches (216 x 297 millimeters), up to Letter or A4 size.

•This scanner is equipped with an ultra-sensitive scanning unit. Opening the document cover during scanning, or improperly closing it, may affect the scanning results. If you are scanning thick documents, such as books, that prevent the document cover from closing, cover the document glass with a dark cloth to prevent ambient light from affecting the scan.