
A–3
Appendix A: Troubleshooting
Key Disabled
Explanation:
Key has no function for this printer model or mode of operation.
Corrective Action:
No corrective action.
Lost Adrs (27)
Explanation:
Certain communication signals have been lost between the
printer and the host computer.
Corrective Action:
Check cable connection, setup of host, and printer address
setting.
Lost Sync (28)
Explanation:
The host is not communicating with the printer.
Corrective Action:
Verify address of computer and host setup.
Check I/O cables.
When this message is displayed during printer
installation, you may continue to test the printer by
placing the printer Offline and entering Menu mode to
select print tests or calibration routines.
Main CPU Fault
Explanation:
A fault has been detected in the main processor during
powerup diagnostics.
Corrective Action:
Call your Customer Service Representative for repair.
No VFU Loaded
Explanation:
A VFU command was received from the host before a VFU
was downloaded.
Corrective Action:
Download the required VFU information, then retransmit the
data.
NVRAM Fault
Explanation:
The nonvolatile data checksum has failed because of one of the
following conditions:
(1)
A new RAM has been installed
(2)
New software with different nonvolatile variables has
been installed
(3)
The variable values have been altered in a destructive
manner
Corrective Action:
Depress the Clear Key. If the message does not clear, cycle
printer power. If the message still does not clear, call your
Customer Service Representative for repair.
Offline Data In
Explanation:
The printer is in Offline condition and nonprinted data is in the
buffer
Corrective Action:
There is no corrective action required. Under normal
conditions, the printer continues to print when it is placed back
Online. If you do not want the buffered data to print, enter the
Clear menu by depressing the Clear key before going back
Online and select the Clear Buffers entry to clear the buffered
data.
Offline Dump On
Explanation:
The printer is in Offline condition and Dump Mode is enabled.
Corrective Action:
No corrective action is necessary. Place the printer back
Online when you are ready to print.
Online Download
Explanation:
The printer is receiving downloaded fonts or VFU information.
Corrective Action:
This message will clear when the download is complete
Online Dump On
Explanation:
The printer is ready to accept and print data from the host
through Dump Mode. All data received from the host will be
printed in hexadecimal format.
Corrective Action:
No corrective action is required.
Overflow VFU
Explanation:
An excessive number of bytes has been sent by the host in a
VFU download.
Corrective Action:
Correct data and retransmit from host.
Hammer Time
Explanation:
The software controlling the print hammer timing has detected
an internal inconsistency.
Corrective Action:
Press the Clear key. If it faults repeatedly, call your Customer
Service Representative and skip to the next print job.
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