Xerox 721 Message Manual page 11

INTRODUCTION
How the message guide is organized
XEROX 4635 LASER PRINTING SYSTEMS MESSAGE GUIDE
Tabs separate the chapters for easy reference and are printed
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with the code you will see on the system display. For
example, FDL messages appear as FDxxxx on your system
display, thus the tab for the FDL chapter is "FD (forms
compilation)."
Coded messages are listed alphanumerically, with the two-
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letter code followed by the four-digit numeric code, such as:
OS1000, PD8510, and HP2430. The numeric codes range
from 0 to 9. Generally, the higher the numeric code, the
more serious the problem or condition being reported.
Scale and system verification error messages are not
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numbered and, therefore, are listed in alphabetical order by
the first word in the message.
The message chapters consist of a lefthand "Message"
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column and a righthand "Meaning/action" column. The
message column contains each entry's message code
followed by the message that appears on the system
controller display, for example:
OS2002 CHECK PAPER SUPPLY IN TRAY 1
The Meaning/action column contains the meaning of the
message and/or what caused it to be displayed. For example:
Fewer than 25 sheets of paper remain in (feeder) tray 1.
This column also lists the action(s) to take, if any, in response to
the message. For example:
1. Add paper to (feeder) tray 1.
2. Press the <CON> key to resume printing.
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