| FRU OR PROCEDURE | ACTION |
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4 | Maintenance Station | Intermittent nozzle failures can be |
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| caused by worn parts in the mainte- |
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| nance station. Go to and perform the |
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| “Maintenance Station Service Check” |
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| on page 12, then return to this check. |
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5 | Paper Feed | Ink smudging and smearing can be |
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| caused by paper problems or prob- |
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| lems in the paper feed area. Check: |
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| • Correct type of paper is in the |
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| machine. Also check the paper for |
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| curl and wrinkles. |
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| • Feed roller for wear, dirt, or loose- |
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| ness |
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| • Gears for wear or binds |
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| • Paper path for obstructions |
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| • Star rollers for binds or dirt. The exit |
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| roller and star rollers keep tension |
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| on the paper by moving slightly |
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| faster than the feed rollers. A bind- |
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| ing star roller can put vertical marks |
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| on the paper. |
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6 | Transport | Blurred print and voids can be caused |
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| by problems in the transport area. |
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| Check the following: |
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| • Transport belt for wear. |
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| • Carrier guide and carrier guide rod |
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| for wear or dirt. |
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| • Idler pulley parts for wear, damage, |
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| or looseness. |
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| • Encoder strip for wear or dirt. |
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7 | BiDirectional Alignment | Uneven vertical lines can be adjusted |
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| by performing the |
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| Alignment Adjustment” on page 31. |
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Diagnostic Information 21