| 摘要 |
A sheet feeder is provided that includes a friction member that includes a contact pressure surface that is configured to contact a feed roller when there is no sheet between the friction member and the feed roller and disposed closer to the feed roller than an upper surface of a supporting member supporting the friction member such that a virtual tangential plane, which is such a virtual plane as if the contact pressure surface were extended toward an upstream side and a downstream side in a sheet feeding direction, does not intersect with the supporting member, and a slanted guide surface that is disposed upstream relative to the contact pressure surface in the sheet feeding direction and slanted with respect to the virtual tangential plane so as to be farther away down from the virtual tangential plane toward the upstream side in the sheet feeding direction.
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