Patent ID: 7589859

Claim:
A print apparatus comprising: a memory unit constructed with a capacity to store compressed print information of at least two or more pages transmitted from a host computer; a decompression unit constructed to decompress the compressed print information read from said memory unit and to output the decompressed print information; an output unit constructed to output the decompressed print information output from said decompression unit to an image formation unit connected to the output unit according to a horizontal sync signal, wherein said image formation unit performs image formation based on the print information output from said output unit; and a detection unit constructed to detect, while said image formation unit is performing the image formation for a current page based on the print information output by said output unit, whether a paper size of a paper fed for the image formation of the current page is smaller than a size of an image of the current page; and a control unit constructed to control, in a case where said detection unit detects that the paper size of the paper fed for the image formation of the current page is smaller than the size of the image of the current page, said decompression unit to abandon the remaining compressed print information for the current page that has not been decompressed by said decompression unit, by causing said decompression unit to read and decompress the remaining compressed print information without outputting the decompressed print information to the output unit, wherein the remaining compressed print information is decompressed and abandoned by the decompression unit without regard to the horizontal sync signal.