| 摘要 |
PROBLEM TO BE SOLVED: To increase sheet supply quantity and facilitate replacement of a feed roller and a retard roller. SOLUTION: This sheet feeder comprises a front door 60 rotatable with regard to a feeder body, a liftable sheet tray 53 for loading a sheet S, a pickup roller 55 for delivering the sheet S loaded onto the sheet tray 53, the feed roller 56 for conveying the sheet S delivered by the pickup roller 55, and a retard roller 57 abutting against the feed roller 56 for the separation of the sheet S, wherein the retard roller 57 is disposed at the front door 60.
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