Section 6: Troubleshooting
POWER LED NOT ILLUMINATED
Main power fuse defective. | Replace fuse. |
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Defective power supply. | Test with meter and replace as required. |
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ERROR LED ILLUMINATED |
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Print head not latched into position. | Ensure print head assembly is latched. |
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LABEL LED IS ILLUMINATED |
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Label supply roll is empty. | Replenish label supply. |
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Label stock is not routed through sensor. | Ensure label roll is correctly installed. |
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Label sensor incorrectly positioned. | Adjust sensor position. |
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Label sensor is blocked. | Clean label sensor. |
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Incorrect label sensor threshold setting. | Adjust label sensor threshold. |
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Platen drive malfunction. | Perform drive train analysis. |
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RIBBON LED ILLUMINATED |
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Ribbon supply roll is empty. | Replenish ribbon supply. |
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Ribbon supply is misaligned. | Realign ribbon sensor. |
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Ribbon sensor is blocked. | Clean ribbon sensor. |
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Ribbon rewind is without core. | Install cardboard core. |
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TROUBLESHOOTING PROCEDURES
The procedures below provide in depth instructions on symptom analysis of specific components. If it is suspected that the problem lies within one of these components, refer to the relative instructions.
RS232 SERIAL INTERFACE
•Ensure the serial cable is thoroughly connected to the PC and the printer.
CAUTION: NEVER CONNECT OR DISCONNECT INTERFACE CABLES (OR USE A SWITCH BOX) WITH POWER APPLIED TO EITHER THE PRINTER OR THE HOST. THIS MAY CAUSE DAMAGE TO THE INTER- FACE CIRCUITRY AND IS NOT COVERED BY WARRANTY.
•Ensure the serial cable is not defective. The minimum requirements is that a Null Modem Cable or correct Pin Outs be used and that it be manufactured to specifications. Refer to the Interface Specifications section of this manual.
•Ensure the RS232 Interface Module is installed. Different module types will have an impact on transmission speed.
•Ensure the data stream is correct, all letters of command codes are in upper case, and with- out spaces. Carriage Returns are also not acceptable in line fields.
M84Pro Service Manual | PN 9001111A | Page |
