Spot or Marks At Same Spot On Every Print
Note: Do not expose the photoconductor to light any longer than necessary when you remove the photoconductor unit from the printer.
| FRU | Action |
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1 | Photoconduc- | Remove the photoconductor unit assembly and |
| tor Unit | check the photoconductor for voids, spots, or |
| Assembly | damage. |
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2 | Fuser Paper | If black spots are observed approximately 70 |
| Separators | mm apart, check the fuser paper separators for |
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| toner buildup. Clean or replace as necessary. |
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Blank Page |
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| FRU | Action |
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1 | Toner Car- | Remove the toner cartridge and gently shake |
| tridge | the assembly to evenly distribute the toner. |
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2 | Printhead | Be sure the printhead actuator in the top cover |
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| actuates the printhead switch in the printhead |
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| assembly. |
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3 | Printhead | Blank pages can be caused by a defective print- |
| Assembly | head assembly or engine board. If the toner car- |
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| tridge is operating correctly, replace the |
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| printhead assembly. If this does not correct the |
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| problem, replace the engine board. |
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All Black Page
Note: Incorrect laser exposure or incorrect charging of the photo- conductor causes an all black page.
| FRU | Action |
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1 | Right Side | Check for a bent, broken, contaminated, or pit- |
| Frame Termi- | ted drum charge bias terminal or drum ground |
| nals | terminal located on the right side frame. |
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| Replace as necessary. |
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Diagnostic Information
