Patent ID: 9126789
Filing Date: 2015-09-08
Classification: B65H

Abstract:
1. A sheet feeding apparatus configured to feed a sheet to an image forming unit, comprising: a frame of the sheet feeding apparatus; a first sheet storage unit including a first sheet stacking portion on which a sheet is stacked, the first sheet storage unit being drawable with respect to the frame; a second sheet storage unit including a second sheet stacking portion on which a sheet is stacked, the second sheet storage portion being drawable with respect to the frame and being disposed above the first sheet storage unit; a first sheet feeding unit configured to feed the sheet stacked on the first sheet stacking portion; a second sheet feeding unit configured to feed the sheet stacked on the second sheet stacking portion; a first lift unit configured to lift the first stacking portion; a first detecting unit configured to detect that the first sheet storage unit is mounted at a first position on the frame; a second detecting unit configured to detect that the second sheet storage unit is mounted at a second position on the frame; a first conveyance path provided in the frame and configured to guide the sheet fed by the first feeding unit to the image forming unit; a second conveyance path provided in the frame and configured to guide the sheet fed by the second feeding unit to the image forming unit; a controller configured to control the first lift unit, wherein the controller controls the first lift unit such that the first lift unit restricts lifting of the first stacking portion in a case where the first detecting unit detects that the first sheet storage unit is mounted at the first position on the frame in a state that the second detecting unit does not detect that the second sheet storage unit is mounted at the second position on the frame, and wherein the first sheet feeding unit includes a roller, the roller being at a position where detaching of the roller from the frame is allowable in a state that the second storage unit is drawn from the second position with respect to the frame, and detaching of the roller from the frame is allowable through a space formed by the second storage unit being drawn from the second position with respect to the frame.