Sheet feeding device and image forming apparatus

A sheet feeding device comprising:

• a sheet storage portion in which a sheet is stacked;
• a lifting plate that is arranged in the sheet storage portion, a downstream part of the lifting plate with respect to a sheet conveyance direction swingable in an up-down direction about an upstream part of the lifting plate with respect to the sheet conveyance direction to move the sheet stacked on a top face of the lifting plate between a feeding position and a retracted position lower than the feeding position;
• a swing driving portion that swings in the up-down direction the downstream part of the lifting plate with respect to the sheet conveyance direction;
• a feeding portion that separates and conveys the sheet arranged in the feeding position one by one downstream of the sheet storage portion in the sheet conveyance direction;
• a sheet detection portion that is provided on the lifting plate, the sheet detection portion detecting whether a sheet is present on the lifting plate;
• and
• a control portion that controls operation of the swing driving portion and the feeding portion,
• wherein
• the control portion arranges the lifting plate in the feeding position when a feeding job for the sheet starts and arranges the lifting plate in the retracted position when the feeding job ends, and
• at an end of the feeding job, while the lifting plate is moving from the feeding position to the retracted position, if a detection state of the sheet detection portion changes from a sheet-present state to a no-sheet state, the control portion rearranges the lifting plate in the feeding position.