4026-0XX
Excessive Background
Note: Poor development or poorly charged toner particles causes excessive background. This is more noticeable as the toner car- tridge nears end of life.
| FRU | Action |
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1 | Toner Car- | Be sure the toner cartridge and photoconductor |
| tridge, Photo- | unit are installed correctly. If installed correctly, |
| conductor | try a new toner cartridge and then a new photo- |
| Unit | conductor unit. If a new toner cartridge or photo- |
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| conductor unit does not correct the problem, |
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| replace the following FRUs one at a time in the |
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| order shown: |
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| HVPS |
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| Engine board |
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White Spots |
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| FRU | Action |
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1 | Transfer | Check the transfer assembly for any signs of |
| Assembly | broken parts, pitting, contamination or foreign |
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| objects attached to or in the area of the transfer |
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| roll. |
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| If no problem is found, replace the following |
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| FRUs one at a time in the order shown: |
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| Transfer Assembly |
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| HVPS |
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Light Print |
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| FRU | Action |
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1 | Photoconduc- | Be sure the photoconductor unit is correctly |
| tor Unit | installed. Check the cartridge for damage and |
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| pitted or contaminated contacts. If no problem is |
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| found, replace the photoconductor unit. |
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