Print Quality NXT
Memjet Printhead
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CONDITION |
PROBLEM |
SOLUTION |
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Intermittent missing dots (lines, in direction of media travel) or changes in color, that temporarily improve after Mid-Job Servicing (MJS) occurs. |
Automatic Printhead Maintenance features need to be adjusted. |
Set “Mid-Job Servicing” to a lower value. Set “KWS” to a higher level. Set “Interpage Frequency” to lower value. |
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Persistent missing dots (crisp or jagged lines, in direction of media travel) |
Clogged or dirty Printhead. Air in printhead/ink lines |
Clean Printhead using “Maintenance” features. Run “Full Clean Printhead”. Replace Printhead and Wiper Roller. |
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Blurry/wavy images |
Printhead too far from media surface. Printhead needs maintenance or replacement. |
Reduce Media Thickness and or Print Height values to bring Printhead closer to media. Clean Printhead using Maintenance features (Quick/Normal/Full Clean) from Printer Touchscreen or Toolbox. Clean Printhead manually using distilled water and a wet, clean, lint-free cloth.
Replace Printhead and Wiper Roller.
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Black bar/line printed near trailing edge of media |
Purge Bar hitting trailing edge of media. |
Check/adjust “Purge Bar Position”. |
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Feeding problems and or image distortions |
Double sheets. Misfeeds. Media hesitating or skewing. |
Adjust Sheet Separators. Check adjust Media Thickness. Try using low (3 dot) Print Platen. Verify that Print Platen & Drip Tray Assembly are installed properly; sitting level. Try un-locking, but not opening, Exit Transport Cover. |