The WinPrint 800 is based on the Canon LX series printer (similar to the LBP 4SX), and incorporates the same print engine as the Hewlett-Packard LaserJet 3P.
Although you may not be able to buy the cable or controller card, the printer itself can be serviced by any Canon or Hewlett-Packard service center.

These diagrams shows all the components for a LX based printer, like the WinPrint 800.








Source: http://www.printerworks.com/Catalogs/LX-Catalog/LXAssblyLocDiag.html
See the above site for detailed diagrams of the individual components.

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An optional paper feeder and cassette assembly is available, which allows the front door to remain closed, saving valuable desk space.

http://www.printerworks.com/Catalogs/LX-Catalog/300LXOptFeednCassets.html

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The toner cartridge is made by Hewlett-Packard, part number 92275A.