Epson LQ-300+II User Manual page 69

For Windows Vista or XP, if another driver is already
installed, select whether to use the printer as the default
printer or not, then click OK.
7. Make sure of the settings, then click Finish.
.
With Windows Vista
Follow these steps to set Windows Vista clients.
1. Click Start, click Control Panel, click Hardware and Sound,
and then click Printers.
2. Click the Add a Printer icon.
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