Patent ID: 6791701
Filing Date: 2004-09-14
Classification: G06K,H04N

Abstract:
An image forming apparatus capable of operating selectively between in two operation modes, a copy mode and a printer mode, the image forming apparatus comprising:a plurality of VRAMs for storing image data; a VRAM control circuit for controlling data storage and reading into and from the VRAMs; a controller for controlling an operation of the VRAM control circuit; a display for displaying an image based on image data transmitted from the VRAM control circuit; and an interface for inputting data transmitted from an external apparatus, wherein the VRAM control circuit has a device in which wiring of a gate array is rearrangeable based on supplied structure information, and the controller rearranges the wiring of the gate array of the device in the VRAM control circuit according to the operation mode, thereby switching at least one of the VRAMs so as to act as a memory for storing image data for displaying an image on the display or as a buffer for temporarily storing data input through the interface.