4026-0XX
| FRU | Action |
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2 | Cables/Con- | Be sure the printhead cables to the engine |
| nectors | board are properly seated. |
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3 | HVPS Con- | Be sure the HVPS is correctly installed. Be sure |
| tacts | the two high voltage contacts and the ground |
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| contact are not damaged. Repair as necessary. |
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4 | HVPS Cover | Check the HVPS cover for pitted or damaged |
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| contacts. Replace as necessary. |
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5 | Printhead | If all the previous checks are correct, replace the |
| Assembly, | following FRUs one at a time in the order shown: |
| Engine |
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| Board, HVPS | Printhead Assembly |
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| Engine board |
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| HVPS |
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White or Black Lines or Bands
Note: Poor image development, incorrect charging of the photocon- ductor, incorrect laser exposure, poor image transfer, or poor fusing causes white/black bands or lines.
| FRU | Action |
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1 | Toner Car- | Remove the toner cartridge and gently shake to |
| tridge | evenly distribute the toner. Check the cartridge |
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| drive gear and contacts for damage. Replace |
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| the toner cartridge as necessary. |
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2 | Photoconduc- | Check the photoconductor unit for damage to |
| tor Unit | the drive gear or contact. Replace as necessary. |
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