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Diagnostic Part 3: Printhead Problems

If part 2 revealed a Printhead problem, then the purpose of part 3 is to identify exactly which Printhead is faulty. Each rectangle in this part is identified with the number of the Printhead that produced it.
If ALL the Printheads are printing perfectly, part 3 of the Diagnostic print will look like this:
The following example shows an imperfect Printhead (number 4) that is still suitable for printing. It is not damaged enough to warrant a replacement because the Printer can compensate for a number of faulty nozzles.

Analyzing Printhead Nozzles

Do not expect perfection, because even if there are only a few missing lines, the Printer can compensate for this so there is no need to replace the Printhead. Up close, the rectangle printed by a faulty Printhead in part 3 of the Diagnostic Print may look like some of these examples.

Troubleshooting a Faulty Printhead

1. If part 3 of the Diagnostic Print shows a problem with one Printhead, but part 2 of the Diagnostic Print shows no problem, then:
  • No immediate corrective action is required.
  • The printer will compensate for the problem and maintain Image Quality.
2. If both parts 2 and 3 of the Diagnostic Print show a problem, then:
  • Recover the printheads using the option through the Front Panel (Ink Menu/Printheads/Recover Printheads).
  • If the problem continues, replace the faulty Printhead.
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