Sheet feeding device, image reading device, and image forming apparatus

A sheet feeding device, comprising:

• a sheet placement portion on which a sheet is placed;
• a sheet conveyance path through which the sheet is conveyed;
• a sheet feeder that feeds the sheet placed on the sheet placement portion to the sheet conveyance path;
• a conveyed sheet detector that detects the sheet being conveyed through the sheet conveyance path;
• and
• one or more controllers, wherein
• the sheet feeder includes
• a feeding roller that rotates about a rotation axis by receiving a rotational driving force from a driving source,
• a roller holder that pivotally supports the feeding roller,
• a holder mover that moves the roller holder to a lowered position where the feeding roller abuts against the sheet placed on the sheet placement portion or to a raised position where the feeding roller is separated from the sheet placed on the sheet placement portion, and
• a sheet stopper provided above the sheet placement portion and movable to a first position where feeding of the sheet placed on the sheet placement portion to the sheet conveyance path is regulated and to a second position where the feeding of the sheet placed on the sheet placement portion to the sheet conveyance path is not regulated,
• the one or more controllers are allowed to perform
• a feeding operation of moving the roller holder to the lowered position and feeding the sheet placed on the sheet placement portion to the sheet conveyance path by the feeding roller, and
• a retracting operation of stopping the feeding operation of the feeding roller and moving the roller holder to the raised position in a case where it is determined that the sheet fed by the feeding operation is stopped in the sheet conveyance path based on a detection result of the conveyed sheet detector, and
• the sheet feeder further includes a holding regulating portion that holds the sheet stopper so as not to move from the second position in a case where the retracting operation is performed in a state where the sheet stopper is located at the second position.