Print Quality NXT
Memjet Printhead
CONDITION | PROBLEM | SOLUTION |
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. |
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. |
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. |
Black bar/line printed near trailing edge of media | Purge Bar hitting trailing edge of media. | Check/adjust “Purge Bar Position”. |
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. |