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Equipment and method for controlling printing

A print head and processor technology, applied in the direction of digital output to printing unit, printing, input/output process of data processing, etc., can solve the problems of heavy burden, double the price of printer, difficult to modify, etc., and achieve the effect of improving performance

Inactive Publication Date: 2004-06-23
普驰有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional hardware development is expensive and difficult to modify
Print stream limitations impose a heavy burden on application generators and clients
Ultimately, the large print server and controller required doubles the price of the printer

Method used

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  • Equipment and method for controlling printing
  • Equipment and method for controlling printing
  • Equipment and method for controlling printing

Examples

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Embodiment Construction

[0016] Although the invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, it should be understood that those skilled in the relevant art, starting from the description, can modify the invention described herein and still obtain Satisfactory result of the present invention. Accordingly, the following description should be understood as a broad, teaching disclosure guide for those skilled in the appropriate art, and not as a limitation of the present invention.

[0017] At the outset, it is useful to review some terminology that will be used in the following discussion. A "print job" is typically a stored data file accessible to an information handling system such as a high performance personal computer or a network server. Data files can be generated in a variety of ways known to those skilled in the art of printing, including raw file typing, scanning, using a graphic design pro...

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PUM

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Abstract

A print controller, method and program product in which print stream data is received, parsed into local and global portions, packaged for further raster image processing, and then processed in parallel by a plurality of raster image processors.

Description

technical field [0001] The present invention relates to controlling printing in a high-speed color printing device. Background technique [0002] High-speed color printing requires efficient computing and communication resources. At 8 bits per dot, 600 dots per inch, each letter-sized page contains approximately 128MB of uncompressed data in the CMYK (four separations used for printing) color space. By using multiple structures such as MO:DCA, PostScript, and PCL to describe pages, print streams use less data to describe each page. This allows the print server to generate more complex output relatively quickly. [0003] Print engines, on the other hand, require bitmaps, so a printer controller, such as the IBM Advanced Functionality Common Control Unit (AFCCU), must convert or rasterize the input data to a bitmap. Raster image processing is also known as "rip" or "ripping" (raster image processing) in preparation for sending a data stream to a printhead. Existing high-en...

Claims

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Application Information

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IPC IPC(8): G06F3/12
CPCG06F3/124G06F3/126G06F3/1296G06F3/1208G06F3/1241G06F3/1279G06F3/1211G06F3/1288
Inventor N·里贾维
Owner 普驰有限责任公司
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