Image forming apparatus provided with detachable processing unit

An image forming apparatus comprising:

• an apparatus body including an opening portion, and an opening-and-closing member configured to move between a closing position at which the opening-and-closing member closes the opening portion and an opening position at which the opening-and-closing member opens the opening portion;
• a process unit detachably attached to and supported by the apparatus body and configured to form an image on a sheet, the process unit including
• an image bearing member configured to bear a toner image and rotate,
• a toner storage portion configured to store toner, and
• a supply portion configured to communicate with the toner storage portion and receive toner supplied from an outside of the process unit in a state where the process unit is attached to the apparatus body;
• a sheet supporting portion configured to support the sheet, the sheet being to be set to the sheet supporting portion in a sheet setting direction;
• and
• a rotary feeding member configured to feed the sheet on the sheet supporting portion,
• wherein when viewed in a gravity direction, the supply portion is disposed on an upstream side of the apparatus body in the sheet setting direction, and the opening portion is disposed on a downstream side of the apparatus body in the sheet setting direction, and
• wherein in a case where the opening-and-closing member is positioned at the opening position, the process unit is configured to be attached to and detached from the apparatus body through the opening portion.