Print Quality Service Check
| FRU OR PROCEDURE | ACTION |
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1 | Print Cartridge | Be sure the machine has a known |
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| good print cartridge. |
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2 Print Head Carrier Assembly | Reseat the print head cable in the | |
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| system board and check the following |
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| parts for wear or damage: |
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| Print Cartridge Latch |
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| Latch Spring |
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| Carrier |
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3 | Purge Test | Perform the “Purge Test” on page 25 . |
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| Look for a break in the diagonal line |
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| at the bottom of the test pattern. A |
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| broken line indicates one or more |
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| print nozzles are not working. Run the |
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| test again to verify the failure If there |
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| are even breaks in the diagonal line |
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| similar to the pattern shown below, |
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| replace the system board. |
If there is a single break or random breaks in the diagonal line check the following:
•Print head cable - check the gold- plated contacts on the end of the cable that connects to the carrier for dirt and wear. Use only a clean dry cloth to clean the contacts. Also check the cable for damage. You may need to remove the cable from the carrier to inspect it.
•Rubber Backer - a worn rubber backer will result in poor contact
between the print head cable and the print cartridge. Check the rub- ber backer for wear
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