Patent ID: 8434757
Filing Date: 2013-05-07
Classification: B65H

Abstract:
1. A sheet feeder comprising: a casing having a loading surface on which a plurality of recording sheets are to be loaded; a supply roller configured to feed the recording sheets loaded on the loading surface; an overload prevention member disposed upstream from the supply roller in a sheet feed direction, the overload prevention member including a restriction surface configured to be moved between a first position where the restriction surface is separated a predetermined distance away from the loading surface and a second position where the restriction surface is separated further away from the loading surface than when the restriction surface is in the first position; and a movable member disposed downstream from the overload prevention member in the sheet feed direction, the movable member being configured to be moved from a third position to a fourth position by being pushed by leading ends of the recording sheets when the recording sheets are inserted downstream further than the overload prevention member in the sheet feed direction, wherein the movable member and the overload prevention member are configured to interlock each other such that, when the movable member is located in the third position, the restriction surface is located in the first position, and when the movable member is located in the fourth position, the restriction surface is located in the second position.