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LaserMatrix Series Troubleshooting Guide
- Problem:
- Dots, Spots, Smudges, Blobs, Blotches, "Stains"(Random and Overall)
| Probable Cause | Solution |
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Damaged, Dirty, or Contaminated Developer, Drum, Corona Wires, or Fuser
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Perform "Transfer Sequence Fault Isolation Test"(Page
7-39).
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Paper Quality
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Choose a different type or source of paper. Prefer uncoated paper; coated papers can appear stained.
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Dirt Between the Drum and its Polyester Seal
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Clean. See Section 6, Maintenance.
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Low, Contaminated, or "Spoiled"Tone
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Low toner can cause the carrier on the toner-coated developer roller to pit the drum thereby causing pin-point black dots on the printout. The same can result from large "chunks"of toner in a contaminated toner reservoir. If necessary, remove developer and carefully empty toner reservoir. Refill with fresh toner.
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