Outlook 2010 Won't Print Certain Characters

When I print an email longer than a single page (to a particular printer, from a particular workstation) certain characters don't print (e.g., 0, 8, G, H, L, O, q, W, ?, /). The rest of the email prints fine.

If I print from this particular workstation to a different printer, it prints fine.

If I print from a different workstation (with identical specs) to this particular printer, it prints fine.

Printer drivers are up-to-date and installed on the Network.

PC Specs: Dell Optiplex GX745; Intel Core 2 CPU 6700 @ 2.66 GHz; 1.57 GHz, 3.25 GB RAM, Windows XP Pro SP3

Printer: Savin CLP128

Any help would be appreciated.