Medium conveying apparatus

A medium conveying apparatus, comprising:

• a housing having an engaged portion and a guide surface for media;
• a placement tray attachable to and detachable from the housing and having an engaging portion engageable with the engaged portion and a placement surface for media, wherein when fixed to the housing, the placement tray forms a first angle with the guide surface;
• and
• a side guide mounted on the placement surface and protruding downstream beyond the placement tray in a medium conveying direction to restrict a medium in a width direction perpendicular to the medium conveying direction,
• wherein the engaged portion is configured to:
• restrict entry or removal of the engaging portion when the placement surface forms the first angle with the guide surface in attachment of the placement tray to the housing or detachment of the placement tray from the housing;
• and
• allow entry or removal of the engaging portion when the placement surface forms a second angle different from the first angle with the guide surface in attachment of the placement tray to the housing or detachment of the placement tray from the housing, and
• wherein a downstream end of the side guide in the medium conveying direction does not intersect with the guide surface as viewed from the width direction when the placement surface forms the second angle with the guide surface in attachment of the placement tray to the housing or detachment of the placement tray from the housing.