JP2001239707A5 - - Google Patents

Claims (10)

A control circuit for deploying in band units in the image data of a predetermined format input data to be printed in a page description language, the printer engine and is communication interface for received and prints the image data from the control circuit for each band A printer control device connected via
The control circuit includes a determination unit that determines whether or not transfer of image data for one band to the printer engine is necessary. For a band that is determined not to be transferred by the determination unit, the image for the one band is included. A printer control apparatus, wherein data is not transferred to the printer engine. The control circuit includes a memory for storing the developed image data in band units. When the determination unit determines that the image data of a certain band does not need to be transferred, the image data of the next band is stored. 2. The printer control apparatus according to claim 1, wherein address information for specifying the stored area of the memory is transferred to the printer engine. The determination unit generates an intermediate code of a predetermined format after the identification code included in the input data or the control circuit receives print data, and determines whether or not data transmission is necessary based on the generated intermediate code The printer control apparatus according to claim 1, wherein: The control circuit does not transfer image data for the band when it is determined that development to image data is not required by referring to the intermediate code for a band by the determination means. The printer control device according to claim 3. 3. The printer control apparatus according to claim 2, wherein the determination unit determines whether the image data for one band is all zero data. The printer engine includes a memory capable of storing the data developed by the control circuit corresponding to a plurality of bands, one page, or a plurality of pages, and is transferred from the control circuit to the band unit in the memory. 6. The printer control device according to claim 5, wherein the image data is stored, and when printing of image data for one band is completed, the address space in which the image data is stored is cleared to zero. The control circuit is configured so that when the input data is expanded into image data, if the data arrangement for one word of the image data is different from the predetermined data arrangement handled by the printer engine, the predetermined data arrangement is obtained. 2. The printer control apparatus according to claim 1, further comprising conversion means for converting image data for one band in units of one word. 2. The printer control apparatus according to claim 1, wherein the printer engine is a printer engine for recording an image by an electrophotographic method. A control circuit that expands input data to be printed into image data of a predetermined format in a page description language in a band unit, transfers the expanded image data to a printer engine in a band unit, and a band transferred from the control circuit the image data of the unit, a plurality bands, a single page or multiple pages only stored and a printer engine to start printing at the time point is connected via a communication interface data transfer method of the printer control device,
The control circuit determines whether it is necessary to transfer one band of image data to the printer engine,
A data transfer method for a printer control apparatus, characterized in that image data for one band is not transferred to the printer engine for a band determined not to be transferred by the determination. Using the memory provided in the control circuit, the developed image data is stored in band units,
When it is determined that image data of a certain band does not need to be transferred, address information specifying the area of the memory storing the image data of the next band is transferred from the control circuit to the printer engine. A data transfer method for a printer control apparatus according to claim 9.