Image forming apparatus and image forming method

An image forming apparatus comprising:

• a storage device having a plurality of storage sections in which divided data for image formation are stored separately;
• an image forming section configured to form an image based on the data stored in the storage device;
• and
• a control section configured to control the storage device so as to store the divided data in a plurality of storage sections separately;
• wherein the control section controls the storage device by comparing a number A of storage sections usable for storage of data in the storage device with a number B of storage sections being used for storage of the data in the storage device, and, when the number A is larger than the number B (A>B), reading out the data from the B units of storage sections, dividing the read-out data and storing the divided data separately in parallel in the A units of storage sections, wherein each of A and B representing numeral and one storage section being counted as one unit.