Epson WorkForce Pro WF-C8690 A3 Color MFP with PCL/PostScript - Manual (Page 361)

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7. Check the printed pattern to see if there are gaps in the lines.
Print head is clean
Print head needs cleaning
• If there are no gaps, click Finish .
• If there are gaps or the pattern is faint, click Clean to clean the print head again.
If you don’t see any improvement after cleaning the print head up to 4 times, wait at least 6 hours without
printing. Then try cleaning the print head again. If quality still does not improve, one of the ink cartridges
may be old or damaged and needs to be replaced.
Parent topic: Print Head Cleaning
Related topics
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Print Head Alignment
If your printouts become grainy or blurry or you notice misalignment of vertical lines, you may need to
align the print head.
Note: Banding may also occur if your print head nozzles need cleaning.
Aligning the Print Head Using the Product Control Panel
Parent topic: Adjusting Print Quality