make sure the printer is installed and working on one of the PCs then right click on the printer icon and select "share".
Then on the other PCs go into "printers and faxes" and "add new printer", follow the wizard through and select "network printer" as you come to it.
Depending on the printer you may need the driver disk and you may also find that some features only work on the PC thats physically connected to the printer (such as ink levels)
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