Image forming apparatus, method, and computer-readable medium for preventing failures and errors in drum memory and belt memory due to hot-swapping

A non-transitory computer-readable medium storing computer-readable instructions executable by a processor included in a controller of an image forming apparatus, the instructions being configured to, when executed by the processor, cause the controller to:

• start supplying power from a drum power supply to a drum memory;
• start supplying power from a belt power supply to a belt memory;
• stop supplying the power from the drum power supply to the drum memory after starting supplying the power from the drum power supply to the drum memory;
• and
• stop supplying the power from the belt power supply to the belt memory after stopping supplying the power from the drum power supply to the drum memory when the controller is supplying the power from the drum power supply to the drum memory and is supplying the power from the belt power supply to the belt memory,
• wherein the image forming apparatus comprises
• a main body,
• a drum cartridge configured to be removably attached to the main body, the drum cartridge comprising,
• a photoconductive drum, the drum memory storing information regarding the photoconductive drum, and
• a drum connector electrically connected with the drum memory,
• a belt unit configured to be removably attached to the main body, the belt unit comprising
• a transfer belt configured to contact the photoconductive drum of the drum cartridge attached to the main body, the belt memory storing information regarding the transfer belt, and
• a belt connector electrically connected with the belt memory, and wherein the main body comprises
• the controller,
• a first connector configured to connect with the drum connector when the drum cartridge is attached to the main body,
• a second connector configured to connect with the belt connector when the belt unit is attached to the main body,
• the drum power supply configured to supply the power to the drum memory via the first connector and the drum connector when the drum connector is connected with the first connector, and
• the belt power supply configured to supply the power to the belt memory via the second connector and the belt connector when the belt connector is connected with the second connector.

An image forming apparatus comprising:

• a main body;
• a drum cartridge configured to be removably attached to the main body, the drum cartridge comprising
• a photoconductive drum,
• a drum memory storing information regarding the photoconductive drum, and
• a drum connector electrically connected with the drum memory;
• a belt unit configured to be removably attached to the main body, the belt unit comprising
• a transfer belt configured to contact the photoconductive drum of the drum cartridge attached to the main body,
• a belt memory storing information regarding the transfer belt, and
• a belt connector electrically connected with the belt memory, wherein the main body comprises
• a first connector configured to connect with the drum connector when the drum cartridge is attached to the main body,
• a second connector configured to connect with the belt connector when the belt unit is attached to the main body,
• a drum power supply configured to supply power to the drum memory via the first connector and the drum connector when the drum connector is connected with the first connector,
• a belt power supply configured to supply power to the belt memory via the second connector and the belt connector when the belt connector is connected with the second connector, and
• a controller configured to
• start supplying power from the drum power supply to the drum memory,
• start supplying power from the belt power supply to the belt memory,
• stop supplying the power from the drum power supply to the drum memory after starting supplying the power from the drum power supply to the drum memory, and
• stop supplying the power from the belt power supply to the belt memory after stopping supplying the power from the drum power supply to the drum memory when the controller is supplying the power from the drum power supply to the drum memory and is supplying the power from the belt power supply to the belt memory.