| 摘要 |
An image scanning machine includes a document feeder for feeding sheets into a first paper path from a stack one sheet at a time if a one-side scanning mode is selected. If a both-side scanning mode is selected, a sheet is introduced into a second paper path which is an inverting path that turns a sheet, which is fed from the document feeder, upside down prior to scanning. Rollers located at a downstream end of the inverting path reverse a transportation direction of the sheet and feed the sheet to a scanner through a return path. The transportation direction of the sheet is reversed after the scanner scans one side of the sheet, and the sheet is then fed to the scanner again to scan the other side of the sheet. This transportation direction reversal results in turning the sheet upside down. A guide member is located a bifurcation of the return path and the inverting path for opening one of the return and inverting paths and closing the other of the return and inverting paths. Another guide member is located a bifurcation of the first and second paper paths.
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