Only); The Font On The Printout Is Different From That On The Screen; The Printer Fonts Cannot Be Installed - Epson AcuLaser MX20DN series User Manual

Cause
The Emulation Menu in the printer's Control Panel is set
to a mode other than Auto or PS3 for the interface that
you are using.
The printer or its driver does not appear in utilities in the printer configuration
(Macintosh only)
Cause
The printer name has been changed.
The AppleTalk zone setting is incorrect (for Mac OS X 10.5
or below).

The font on the printout is different from that on the screen

Cause
The PostScript screen fonts are not installed.
For Windows users only
The appropriate substitution fonts are not correctly
specified on the Device Settings sheet of the printer's
Properties dialog box.

The printer fonts cannot be installed

Cause
The Emulation Menu in the printer's Control Panel is not
set to PS3 for the interface that you are using.
Epson AcuLaser MX21/MX20 Series
What to do
Change the mode setting to either Auto or PS3.
What to do
Ask the network administrator for details, then select the
appropriate printer name.
Open the Print & Fax (for Mac OS X 10.5) or Printer Setup Utility
(Mac OS X 10.4 or below), then select the AppleTalk zone that the
printer is connected to.
What to do
The PostScript screen fonts must be installed on the computer
that you are using. Otherwise, the font that you select is
substituted by some other font for display on the screen.
Specify the appropriate substitution fonts using the Font
Substitution Table.
What to do
Change the Emulation Menu setting to PS3 for the interface that
you are using, then try reinstalling the printer fonts again.
User's Guide
Troubleshooting 239