24xx
Printhead Service Check
| FRU | Action |
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1 | Printhead Cables | If the printout contains missing or extra dots or |
| Printhead | lines, do the following: |
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| • Check the continuity and connection of the |
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| printhead cables and the short flexible cable. |
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| • Be sure the voltages to the logic board are |
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| correct. |
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| If dots are missing: |
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| • Perform the print test to determine which |
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| wire is not firing. |
|
| • Remove the printhead and verify that no |
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| pins on the printhead are broken or missing. |
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| If pin(s) are missing, replace the printhead. |
|
| • Check the printhead resistance according to |
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| “Printhead Impedance Tables” on |
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| page |
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| to the printhead housing. |
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| If the printout does not contain missing or extra |
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| dots or lines, be sure the printhead is securely |
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| installed in the carrier and perform the |
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| page |
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2 | Carrier Shaft | Check and replace worn or damaged parts. |
| Carrier Unit |
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| Platen Assembly |
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| Printhead Nose |
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| Ribbon Guide |
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Diagnostic Information
