The image formation apparatus comprises a plurality of hard disk drives which store image data and a hard disk drive array control integrated circuit which controls reading/writing of image data from/into the hard disk drives. The hard disk drive array control integrated circuit executes setting of parameters, issuance of commands, and reading of statuses for all the hard disk drives substantially at the same time, divides the image data into pieces, and executes direct memory access transfer of the pieces of the image data to the hard disk drives substantially at the same time.