Patent ID: 8836989

Claim:
A device for controlling the initiation of an image forming apparatus by using a NAND flash memory, the device comprising: the NAND flash memory to store a boot program and a plurality of system control programs; a random-access-memory (RAM) to temporarily store an execution program and data; and a control unit to initiate the image forming apparatus by reading the boot program from the NAND flash memory and executing a boot code included in the boot program when power is applied to the image forming apparatus, to first read an engine control program from among the plurality of system control programs and execute the first-read engine control program, and to read the remaining system control programs from the NAND flash memory and store the remaining system control programs in the RAM while the first-read engine control program is being executed, wherein the engine control program is in a printable state by preheating a fixing unit of the image forming apparatus.