Action Yes No
Step 5
1 Remove the optional tray.
2 Make sure that the
interconnect cable of the tray
is properly installed.
3 Check the interconnect cable
and its connector pins for
damage.
4 Make sure that the tray
controller board is properly
installed.
5 Reseat all the cables on the
tray controller board.
6 Check the optional tray
controller board and its
connector pins for damage.
Are the tray interconnect cable
and controller board free of
damage?
Contact the next level of support. Go to step 6.
Step 6
Replace the optional tray.
Does the problem remain?
Contact the next level of support. The problem is solved.
993388--999922 EErrrroorrss
993388––999922 EErrrroorr MMeessssaaggeess
Error code
Description
Action
938.yy Supplies security is not enabled. Restart the printer. If the problem
remains, then contact the next
level of support.
950.10 Non-Generic FRU installed.
Mismatch between system
NVRAM part and mirror NVRAM
part.
.xx points to the setting that does
not match.
See NVRAM mismatch failure
service check .
953.99 NVRAM chip failure with mirror
part.
980.yy An option communication error
occurred.
See Optional tray communication
error service check .
981.yy An invalid paper port protocol
error occurred.
114
Xerox
®
B310 Printer
Service Manual
Diagnostics and Troubleshooting
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