Image forming apparatus

An image forming apparatus comprising:

• a first photosensitive drum rotatable about a first axis extending in a first direction;
• a second photosensitive drum rotatable about a second axis extending in the first direction, the second photosensitive drum being aligned with the first photosensitive drum in a second direction crossing the first direction;
• a first toner container configured to contain toner;
• a first development housing configured to contain toner from the first toner container;
• a first development roller rotatably supported by the first development housing, the first development roller being configured to supply toner in the first development housing to the first photosensitive drum;
• a second toner container configured to contain toner, the second toner container being aligned with the first toner container in the second direction;
• a second development housing configured to contain toner from the second toner container, the second development housing being aligned with the first development housing in the second direction;
• a second development roller rotatably supported by the second development housing, the second development roller being configured to supply toner in the second development housing to the second photosensitive drum;
• a drum cleaner configured to clean a circumferential surface of the first photosensitive drum;
• and
• a toner pipe configured to allow passage of toner that is recovered from the drum cleaner to the first toner container, the toner pipe having a discharge port configured to discharge toner in the toner pipe,
• the first toner container including:
• a toner discharge port configured to discharge toner in the first toner container;
• a toner reception port configured to receive toner discharged from the discharge port of the toner pipe;
• and
• a toner conveyor configured to convey toner from the toner reception port toward the toner discharge port,
• the first development housing including:
• a development reception port configured to receive toner discharged from the toner discharge port;
• and
• a development discharge port configured to discharge, to the toner pipe, toner that is retuned from the first development housing to the first toner container.