Image forming apparatus

An image forming apparatus, comprising:

• a plurality of image forming units each including:
• a toner image forming unit that forms a toner image;
• and
• a toner storing portion including a waste toner storing portion that stores a waste toner generated by the toner image forming unit;
• and
• a single toner cartridge that is removably attached to the plurality of image forming units and includes a plurality of supply toner storing portions corresponding to the plurality of image forming units on a one-to-one basis, the plurality of supply toner storing portions each storing a supply toner,
• wherein each of the plurality of image forming units further includes:
• a supply portion for supplying the supply toner stored in the corresponding supply toner storing portion to the toner image forming unit;
• and
• a conveying member that conveys the supply toner supplied through the supply portion, to the toner image forming unit, and
• wherein the supply toners stored in the supply toner storing portions of the toner cartridge have different colors.