Fault Messages
Table 19. LCD Message Troubleshooting Table (continued)
Displayed Message
Can User Correct?
Explanation
Solution
SHUTL INV CMD* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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SHUTL INV PARM* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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SHUTTLE JAM | Yes | No shuttle movement | Check for obstruction to shuttle, |
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| or shuttle moving at | a twisted ribbon, or forms |
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| wrong speed. | thickness lever closed too tightly. |
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| If fault source is not apparent, |
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| contact your authorized |
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| customer service engineer. |
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SOFTWARE ERROR * | No | Application software | Contact your authorized |
Cycle power |
| tried to perform illegal | customer service engineer.1 |
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| printer function, or |
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| damaged logic circuits |
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| found on controller |
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| board. |
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STACK OVERFLOW* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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STACK UNDERFLOW* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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TCB CORRUPTED* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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UNDEF INTERRUPT* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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UNDFNED OPCODE* | No | Fatal firmware error on | Contact your authorized |
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| controller board. | customer service engineer.1 |
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UP DRV. SHORT * | No | Hammer driver circuits | Contact your authorized |
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| on the boards shorted | customer service engineer.1 |
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| to ground. |
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HAMMER COIL BAD | Yes | Coil # failed current | Record message, clear to |
X, X, X,... |
| test at | continue printing, and contact |
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| your authorized customer |
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| service represetative. |
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1 Before contacting an authorized 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 authorized customer service engineer.
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