Printer expansion method and apparatus

Details Printer expansion method and apparatus Printer expansion method and apparatus

2008-01-29

2008-01-29

Lee, Thomas D. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Communication

C710S300000, C710S306000

Reexamination Certificate

active

07324231

ABSTRACT:
The present invention is a computing system typically but not necessarily used in a printer, which includes a processor for managing operation of a print engine, expansion buses, and bridge devices between expansion buses. A bus bridge is described which can operate in an expansion bus environment. The bus bridge uses a nontransparent PCI bridge in a nonstandard manner to emulate a transparent bus bridge. Processes are included for detecting overall bus topology in the system and for creating configuration cycles on the secondary side of any bridge found.

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“21555 Non-Transparent PCI-to-PCI Bridge”, Intel User Manual, Jul. 2001, pp. 1-198.

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