A printing apparatus for shortening the time required to read documents having a plurality of pages, while preventing the occurrence of an overflow in a storage unit.

A signal processing apparatus includes first and second processors that read and execute a program, and a memory. The first processor is configured to process plural color signals at one time and output the plural color signals in parallel. The memory is configured to temporarily store the plural color signals output from the first processor. The second processor is configured to sequentially read and process plural color signals processable at one time from the memory. The first and second processors are configured to process the plural color signals in units of bands including plural lines; after completion of processing of a first band, processing of a second band starts; and the first processor is configured to start processing the second band at a time point before completion of processing of the first band by the second processor, and at which color signals of the first band remain in the memory.

An image sensor system with an image sensor that generates a first image and a second image. The first and second images are transmitted to a processor in a time overlapping manner. By way of example, the images may be transferred to the processor in an interleaving manner or provided on separate dedicated busses.

An image forming apparatus includes: a first memory for temporarily storing therein image data output to an image forming unit; a data processing processor for reading the image data; a second memory for temporarily storing therein the image data; and a main processor for causing the data processing processor to sequentially read the image data, wherein the data processing processor includes: data transfer units; a transfer control unit; and a table, the main processor sets a start address and a size and instructs the transfer control unit to activate the data transfer units, the transfer control unit divides a size of image data and sets a start address and a size of divided image data, the data transfer units read corresponding image data and output it to the second memory, and the transfer control unit subsequently controls the data transfer units and notifies the transfer completion to the main processor.

A printing apparatus for shortening the time required to read documents having a plurality of pages, while preventing the occurrence of an overflow in a storage unit.

A printing apparatus for shortening the time required to read documents having a plurality of pages, while preventing the occurrence of an overflow in a storage unit.

An image forming apparatus includes: a first memory for temporarily storing therein image data output to an image forming unit; a data processing processor for reading the image data; a second memory for temporarily storing therein the image data; and a main processor for causing the data processing processor to sequentially read the image data, wherein the data processing processor includes: data transfer units; a transfer control unit; and a table, the main processor sets a start address and a size and instructs the transfer control unit to activate the data transfer units, the transfer control unit divides a size of image data and sets a start address and a size of divided image data, the data transfer units read corresponding image data and output it to the second memory, and the transfer control unit subsequently controls the data transfer units and notifies the transfer completion to the main processor.

A printing apparatus for shortening the time required to read documents having a plurality of pages, while preventing the occurrence of an overflow in a storage unit.

A signal processing apparatus includes first and second processors that read and execute a program, and a memory. The first processor is configured to process plural color signals at one time and output the plural color signals in parallel. The memory is configured to temporarily store the plural color signals output from the first processor. The second processor is configured to sequentially read and process plural color signals processable at one time from the memory. The first and second processors are configured to process the plural color signals in units of bands including plural lines; after completion of processing of a first band, processing of a second band starts; and the first processor is configured to start processing the second band at a time point before completion of processing of the first band by the second processor, and at which color signals of the first band remain in the memory.

A printing apparatus for shortening the time required to read documents having a plurality of pages, while preventing the occurrence of an overflow in a storage unit.