Image scanner, and method and computer readable medium therefor

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 total number acquiring unit configured to acquire a total number of the damaged sheets,
• wherein the identifying unit is configured to identify, as the damaged sheets, sheets of the total number acquired by the total number acquiring unit from a sheet to be scanned immediately after the interrupted document feeding is released.

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 page number acquiring unit configured to acquire page numbers of the damaged sheets,
• wherein the identifying unit is configured to identify, as the damaged sheets, sheets specified with the page numbers acquired by the page number acquiring unit among the document sheets to be scanned.

A method for performing document scanning with an image scanner that has a feeding unit configured to sequentially feed sheets and a flatbed glass configured to be loaded with a sheet thereon, the method comprising:

• a feeding step of performing document feeding with the feeding unit;
• an interrupting step of detecting an error during the document feeding with the feeding unit and interrupting the document feeding;
• a releasing step of releasing the document feeding interrupted in the interrupting step after the detected error is settled;
• an identifying step of identifying one or more damaged sheets among document sheets to be scanned;
• a scanning step of performing the document scanning in a first mode for undamaged sheets other than the damaged sheets among the document sheets to be scanned and in a second mode for the damaged sheets identified in the identifying step, 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;
• and
• a resuming step of accepting an instruction to resume the document scanning after the interrupted document feeding is released,
• wherein, when the instruction to resume the document scanning is accepted in the resuming step within a predetermined time period after the interrupted document feeding is released, the scanning step is performed, 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 scanning step is canceled.

A method for performing document scanning with an image scanner that has a feeding configured to sequentially feed sheets and a flatbed glass configured to be loaded with a sheet thereon, the method comprising:

• a feeding step of performing document feeding with the feeding unit;
• an interrupting step of detecting an error during the document feeding with the feeding unit and interrupting the document feeding;
• a releasing step of releasing the document feeding interrupted in the interrupting step after the detected error is settled;
• an identifying step of identifying one or more damaged sheets among document sheets to be scanned;
• a scanning step of performing the document scanning in a first mode for undamaged sheets other than the damaged sheets among the document sheets to be scanned and in a second mode for the damaged sheets identified in the identifying step, 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;
• and
• a total number acquiring step of acquiring a total number of the damaged sheets,
• wherein the identifying step is adapted to identify, as the damaged sheets, sheets of the total number acquired in the total number acquiring step from a sheet to be scanned immediately after the interrupted document feeding is released.

A method for performing document scanning with an image scanner that has a feeding unit configured to sequentially feed sheets and a flatbed glass configured to be loaded with a sheet thereon, the method comprising:

• a feeding step of performing document feeding with the feeding unit;
• an interrupting step of detecting an error during the document feeding with the feeding unit and interrupting the document feeding;
• a releasing step of releasing the document feeding interrupted in the interrupting step after the detected error is settled;
• an identifying step of identifying one or more damaged sheets among document sheets to be scanned;
• a scanning step of performing the document scanning in a first mode for undamaged sheets other than the damaged sheets among the document sheets to be scanned and in a second mode for the damaged sheets identified in the identifying step, 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;
• and
• a page number acquiring step of acquiring page numbers of the damaged sheets,
• wherein the identifying step is adapted to identify, as the damaged sheets, sheets specified with the page numbers acquired in the page number acquiring step among the document sheets to be scanned.

A non-transitory computer readable medium having computer readable instructions stored thereon, the instructions causing an image scanner, which has a feeding unit configured to sequentially feed sheets and a flatbed glass configured to be loaded with a sheet thereon, to perform:

• a feeding step of performing document feeding with the feeding unit;
• an interrupting step of detecting an error during the document feeding and interrupting the document feeding;
• a releasing step of releasing the document feeding interrupted in the interrupting step after the detected error is settled;
• an identifying step of identifying one or more damaged sheets among document sheets to be scanned;
• a scanning step of performing the document scanning in a first mode for undamaged sheets other than the damaged sheets among the document sheets to be scanned and in a second mode for the damaged sheets identified in the identifying step, 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;
• and
• a resuming step of accepting an instruction to resume the document scanning after the interrupted document feeding is released,
• wherein, when the instruction to resume the document scanning is accepted in the resuming step within a predetermined time period after the interrupted document feeding is released, the scanning step is performed, 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 scanning step is canceled.