4059-XXX
| FRU | Action |
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2 | Charge Roll Assembly | Check the charge roll for any signs |
| Charge Roll Link Arm | of toner buildup or other |
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| contamination on the outer edges |
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| that correspond to the bands on the |
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| page. Check the charge links and |
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| arms for proper operation, binds or |
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| incorrectly mounted counterbalance |
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| springs. Repair or replace as |
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| necessary. |
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3 | HVPS | Check the following voltages at |
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| Printer Idle |
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| Printer Printing Test Page |
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| |
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| to +4 V dc |
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| If the voltage does not vary, check |
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| the continuity of line |
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| front cable harness. If there is no |
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| continuity, replace the cable |
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| harness. If there is continuity, |
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| replace the HVPS. If this does not |
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| correct the problem, replace the |
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| engine board. |
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| Turn the printer Off and check the |
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| resistance between |
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| printer ground. The resistance |
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| measures approximately 0 ohms. If |
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| incorrect, make sure the engine |
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| board is mounted correctly and |
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| securely grounded. If correct, |
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| replace the engine board. |
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Print Quality - Residual Image
Service Tip: Install a new print cartridge if available before doing this service check. Residual image can be caused by the photoconductor, cleaning blade and other parts inside the print cartridge. Residual image on model 3455 can also be caused by the charge brush contact.