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Image Number 13 for United States Patent #6226095.
An image processing apparatus is connected to two copying machines and has independent frame memories, FIFOS, and I/Fs for the copying machines. Tasks for generating image data for the copying machines are independent and are executed in parallel. When a fault occurs in one copying machine, the memory area allocated to the copying machine is reduced, and the area is reallocated to the other copying machine. Even when image data are to be printed from a plurality of copying machines, and an error is generated in one copying machine, the remaining copying machines can print normally or more efficiently than in a normal state.
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