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Chapter 15 Diagnosing Problems
STACK UNDERFLOW* Fatal firmware error on controller
board.
Contact your Hewlett-Packard
Customer Service Engineer.
1
STACKER FAULT Failed motor circuit. Contact your Hewlett-Packard
Customer Service Engineer.
1
STACKER FULL Reached full capacity. Remove paper stack.
STACKER JAM Jammed paper, or foreign object,
in unit’s travel path.
Remove paper or foreign
object.
TABLE MISMATCH
DOWNLOAD AGAIN
EC software update in progress. Download the program again.
TCB CORRUPTED* Fatal firmware error on controller
board.
Contact your Hewlett-Packard
Customer Service Engineer.
1
UNDEF INTERRUPT* Fatal firmware error on controller
board.
Contact your Hewlett-Packard
Customer Service Engineer.
1
UNDFNED OPCODE* Fatal firmware error on controller
board.
Contact your Hewlett-Packard
Customer Service Engineer.
1
UP DRV. SHORT * Hammer driver circuits on the
boards shorted to ground.
Contact your Hewlett-Packard
Customer Service Engineer.
1
WAITING FOR
ETHERNET ADAPTER
This status message appears
when the printer is first powered
on if the optional LineJet Print
Server interface is installed.
None
1
Before contacting a Hewlett-Packard Customer Service Engineer, power off the printer, wait 15
seconds, then power it back on and rerun your print job. If the message reappears, press
CLEAR. If the fault message still displays, then contact your Hewlett-Packard Customer Service
Engineer.
Table 21. LCD Message Troubleshooting Table (continued)
Displayed Message Explanation Action Required
