Manual tray device and image forming apparatus

An image forming apparatus, comprising:

• a printer section configured to print data;
• a manual tray device configured to place a sheet conveyed to the printer section, wherein
• the manual tray device comprises:
• a tray storage body having an opening for tray storage on a side surface;
• a tray main body rotatably supported on the tray storage body between a closed position at which the opening is closed and an open position at which the tray main body is rotated at a predetermined angle in an opening direction with a lower end side as a rotation fulcrum;
• an assistance tray arranged at an upstream side of the tray main body in a sheet feed direction so as to be movable forward or backward;
• a rotation regulation link, one end part side of the rotation regulation link being rotatably supported on the tray storage body, the other end part side being slidably supported on the tray main body in a predetermined stroke range;
• and
• an interlocking mechanism configured to interlock displacement of the other end part side of the rotation regulation link with forward and backward displacement of the assistance tray, wherein
• the assistance tray protrudes from the tray main body in a state where rotation of the tray main body in the opening direction is regulated by the rotation regulation link.