QMS 2060 Operation page 106

Error Handler is a diagnostic tool that identifies PostScript errors
encountered during a print job.
Menu Administration/Startup Options/Do Error Handler
Choices Yes—Load the Error Handler.
No—Don't load the Error Handler.
Default No
Notes Refer to the PostScript Language Reference Manual
(Adobe Systems Incorporated, Reading, PA:
Addison-Wesley, 1990, ISBN 0-201-18127-4) for
information on PostScript errors.
You must reboot the printer after turning on the Error
Handler.
If you experience problems either when installing or using printer
description files on a PC, see the "Notes on Installing Printer Descrip-
tion Files" section of chapter 3, "Connecting to a PC," in the Getting
Started manual.)
If you have trouble installing and setting up your QMS CrownNet inter-
face, check the following:
If the printer requires a network interface card, is it correctly
installed in the printer?