IMAGE FORMING APPARATUS

摘要

The present invention provides an image forming apparatus that can facilitate a replacement of a sheet feeding portion.;When a detecting portion detects that a sheet feeding cassette is mounted, a controller controls a driving portion in such a manner as to lift a sheet supporting plate for the mounted sheet feeding cassette. When the detecting portion detects that a sheet feeding cassette is mounted, the controller controls a driving portion in such a manner as not to lift a sheet supporting plate for the mounted sheet feeding cassette in the case where it is determined that a sheet feeding cassette nearest a feeding roller of the mounted sheet feeding cassette is drawn or detached.

主权项

1. An image forming apparatus comprising:
a plurality of sheet storage portions that has a sheet stacking portion, which can be lifted and lowered and on which a sheet is stacked, the plurality of sheet storage portions being drawably provided in an apparatus main body; a sheet feeding portion that is disposed above each of the sheet storage portions and supplies and feeds the sheet stacked on the sheet stacking portion; a driving portion that lifts the sheet stacking portion in the sheet storage portion mounted in the apparatus main body to a position at which the sheet can be supplied and fed by the sheet feeding portion; a detecting portion that outputs a detection signal when the sheet storage portion is mounted at a mounting position inside of the apparatus main body; and a controller that controls the driving portion in such a manner as to lift the sheet stacking portion in the sheet storage portion based on the detection signal output from the detecting portion, wherein the controller, when one of adjacent sheet storage portions is mounted, controls the driving portion in such a manner as not to lift the sheet stacking portion in the one sheet storage portion based on the detection signal output from the detecting portion in the state in which the other sheet storage portion is drawn or detached.