4026-0XX
Hot Fuser Service Check
Note: If you replace the fuser assembly for overheating, also replace the engine board.
CAUTION: FUSER PARTS MAY BE HOT.
| FRU | Action |
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1 | Fuser Assem- | Check for melted or damaged hot roll bearings, |
| bly | drive gear, paper separators, thermistor, hot roll, |
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| backup roll or frame parts. If the fuser assembly |
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| shows evidence of overheating or thermal dam- |
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| age, repair as necessary. |
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| Note: If the lower fuser frame is damaged, |
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| replace the complete assembly. |
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2 | Engine Board | Replace the engine board if the fuser continues |
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| to operate erratic or overheats. |
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Input Sensor Service Check
If the paper never leaves the tray or fails to be picked from the tray, go to the “Paper Feed Service Check” on page
| FRU | Action |
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1 | Paper | Check the paper for rough edges, creases, |
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| tears, or folds. |
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| Be sure the paper leaves the paper tray as soon |
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| as it is picked by the |
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| the “Paper Feed Service Check” on page |
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2 | Envelopes (if | Be sure no more than 10 envelopes are stacked |
| being used) | in the input paper tray. They may not pick or may |
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| jam at the input sensor or paper separator. |
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| Note: Coated papers, synthetic papers, |
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| forms, thermal papers, envelopes with windows, |
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| holes, cutouts, perforations, |
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| fasteners, exposed flap adhesive, excessive curl, bent |
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| corners and some labels cause problems. |
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