Medium feeding apparatus, recording apparatus, and control method for recording apparatus

A medium feeding apparatus comprising:

• a feeding roller configured to feed a medium placed on a medium placement portion;
• a driving portion that drives the feeding roller;
• an arm portion that supports the feeding roller and is configured to rotate about a drive shaft;
• and
• a displacement portion that is configured to come into contact with the arm portion and rotates the arm portion by using forward rotation power from the driving portion, wherein
• the feeding roller feeds the medium placed on the medium placement portion by using forward rotation power from the driving portion,
• the arm portion displaces the feeding roller between a contact position and a separation position,
• the contact position is a position where the feeding roller contacts the placed medium,
• the separation position is a position where the feeding roller is separated from the placed medium, and
• the displacement portion rotates the arm portion to displace the feeding roller from the separation position to the contact position by using forward rotation power from the driving portion, and rotates the arm portion to displace the feeding roller from the contact position to the separation position by using reverse rotation power from the driving portion.