1. Type the following command at the DOS prompt (if LPT1 is not available, use LPT2):
   MODE LPT1:,,P > NUL

   See your DOS documentation for details on the MODE command.

   You can add the MODE command to your AUTOEXEC.BAT file so that it takes effect every time you turn on your computer. (Refer to your PC user documentation.)

Under DOS, use the MODE command to set up your computer's serial port:

Note:Switch 7 must be down for the variable baud rate operation.

1. If you set the printer's rear panel Baud Rate switch (Switch 7) down for variable baud rate and you are using the default serial parameters for this position, type the following command at the DOS prompt (if COM1 is not available, use COM2):
   MODE COM1:9600,N,8,1,P

   If you changed the printer's serial port parameters from the defaults, you must enter different values for the MODE command (see your DOS documentation for details on the MODE command).

   If you set the printer's rear panel Baud Rate switch (Switch 7) up for a fixed baud rate of 1200, enter this command (if COM1 is not available, use COM2):

   MODE COM1:1200,N,8,1,P

   Refer to "Serial port" for a complete listing of the printer's default serial port parameters.

   You can add the MODE command to your AUTOEXEC.BAT file, so that it takes effect every time you turn on your computer. (Refer to your PC user documentation.)

Your Phaser 300X is now ready to use. If you want to turn on or turn off the startup page, refer to "Turning off the startup page". Refer to "Adding a hard disk for font storage" if you want to add a hard disk.