Abstract: An image reading apparatus comprises a reading section to read an original document having plural pages, and generate plural page data corresponding to the pages, a judging section to determine whether the page data includes at least one of a predetermined character, a predetermined symbol or predetermined attribution information, and an extracting section to extract a page which is determined to include at least one of the predetermined character, the predetermined symbol or the predetermined attribution information by the judging section.

Abstract: An image processing apparatus includes: a first memory for storing 2-D image data wherein pixels are arranged in a matrix in the main scanning direction and sub-scanning direction orthogonal to each other; a second memory; and a data control section for controlling the first memory and second memory, wherein at least one of the first and second memories is constituted by a SDRAM. The data control section reads the image data from the first memory in blocks of m pixels in the main scanning direction and n pixels in the sub-scanning direction (where n and m are natural numbers), writes the read data into the second memory, and transmits data to the memory composed of the SDRAM by burst transmission and continuous supply of desired column addresses, thereby allowing the read image data to be rotated.

Abstract: A memory control section 10 is arranged between a bus 3 and a memory 4, if there is access to a predetermined virtual address space from the bus side, a virtual memory space control section 13 gains the corresponding access to small-capacity FIFO memories 11 and 12 from a memory 4, the DMA controller 14 permits data transfer to be carried out between the FIFO memories 11 and 12 and memory 4, asynchronously with the access to the virtual address space from the bus 3 side, the leading addresses of the transfer destination and source inside the memory 4, and the size of the data to be transferred are presetting the DMA controller 14 from the CPU 2 and others on the side of the bus 3.

Abstract: This invention provides an image printing system, method, apparatus, and the like which can shorten the data transfer time from an information processing apparatus to an image printing apparatus and can also shorten the printing time in the image printing apparatus when differential printing is performed. According to the image printing system of the invention, when differential printing is to be performed, a difference comparison/detection unit detects the difference between image information after a revision and image information before the revision which is recorded in advance. A printing information converting unit converts the image information of a portion in which the difference is detected into printing information, and outputs the printing information after the revision. A printing unit prints an image on the basis of this printing information.