Patent ID: 8284465

Claim:
An image scanner comprising: a feeding unit configured to perform document feeding to sequentially feed sheets; a flatbed glass configured to be loaded with a sheet thereon; a scanning unit configured to perform document scanning in any one of a first mode and a second mode, the first mode being a method for sequentially scanning sheets being fed by the feeding unit, the second mode being a method for scanning each sheet which is placed on the flatbed glass on a sheet-by-sheet basis; an interrupting unit configured to detect an error during the document feeding with the feeding unit and to interrupt the document feeding; an identifying unit configured to identify one or more damaged sheets among document sheets to be scanned; a controller configured to, after the interrupted document feeding is released with the detected error being settled, control the scanning unit to perform the document scanning in the second mode for the damaged sheets identified by the identifying unit and in the first mode for undamaged sheets other than the damaged sheets among the document sheets to be scanned; and a resuming unit configured to accept an instruction to resume the document scanning after the interrupted document feeding is released, wherein, when the resuming unit accepts the instruction to resume the document scanning within a predetermined time period after the interrupted document feeding is released, the controller causes the scanning unit to perform the document scanning for the document sheets to be scanned, and wherein, unless the resuming unit accepts the instruction to resume the document scanning within a predetermined time period after the interrupted document feeding is released, the controller cancels the document scanning to be performed for the document sheets to be scanned.