Drum cartridge including storage medium having electrical contact surface positioned at outer surface of drum frame

A process cartridge comprising:

• a drum cartridge including:
• a drum frame having a first end portion and a second end portion spaced apart from the first end portion in a first direction, the drum frame having a third end portion and a fourth end portion spaced apart from the third end portion in a second direction;
• a photosensitive drum rotatable about a first axis extending in the second direction, the photosensitive drum being positioned at the first end portion of the drum frame;
• a first storage medium including a first electrical contact surface;
• and
• a handle being positioned at the second end portion of the drum frame, and
• a toner cartridge detachably attachable to the drum frame, the toner cartridge including:
• a casing configured to store toner;
• and
• a second storage medium including a second electrical contact surface,
• wherein the first electrical contact surface is positioned at the first end portion of the drum frame, and
• wherein the second electrical contact surface is positioned between the first electrical contact surface and the handle in the first direction in a state where the toner cartridge is attached to the drum cartridge.