HP Latex 260 Maintenance and troubleshooting guide - Page 60
Corrective action, What to do if problems persist, Graininess
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For each individual colored pattern, make sure that most of the dashes are present. Corrective action 1. Clean any faulty printheads. See Clean the printheads on page 72. Then reprint the printhead status plot to see whether the problem has been solved. 2. If the problem persists, clean the printheads again, and reprint the printhead status plot to see whether the problem has been solved. 3. If the problem continues to persist, replace any persistently faulty printheads. See Replace a printhead on page 30. What to do if problems persist If you still experience print-quality problems after applying the advice in this chapter, here are some additional tips to consider: ● Try selecting a higher print-quality option in your RIP software. ● Check that your printer firmware is up to date. See Firmware update on page 9. ● Check that you have the correct settings in your software program. ● Call your service representative. See When you need help on page 85. Graininess If you see this kind of problem: ● Ensure that the vertical correction option is disabled in the RIP and in the front panel. At the front panel, select the icon, then select Image quality maintenance > Disable vertical correct. (if this option is available). ● The printheads may be misaligned. This is likely if you have not aligned the printheads for a long time, or if there has been a substrate jam. Align the printheads if necessary (see Align the printheads on page 11). You can check whether it is necessary by using the printhead status plot (see Use the printhead status plot on page 53). ● If you are printing with eight or more passes, the substrate advance may need adjustment. See Adjust the substrate advance on page 56. 54 Chapter 6 Troubleshoot print-quality issues ENWW