Inkjet printer has clogged nozzles

Symptoms

• Nozzle check pattern shows gaps, faint lines, or missing colors
• Print quality has gradually or suddenly degraded
• Printer hasn't been used in a while before the problem appeared
• One or two colors are affected more than others

Likely causes

• CommonInk drying in the print head nozzles from infrequent usePrinters left unused for weeks or months are especially prone to clogs.
• PossibleUsing the printer with low-quality or old inkInk that's expired or of inconsistent quality can dry and clog more easily.
• PossiblePrinter stored or used in a very dry environmentLow humidity accelerates ink drying at the nozzle.
• PossibleCartridge left out of the printer for an extended periodExposed nozzles dry out faster than when sealed inside the printer.

What to do

1. Print a nozzle check pattern from the printer's utility software or control panel to see exactly which nozzles or colors are clogged.
2. Run the built-in print head cleaning cycle once, then print another nozzle check to see if it improved.
3. If still clogged, run the cleaning cycle a second time, but avoid excessive repeated cleanings since each cycle uses ink.
4. If cleaning cycles don't help, remove the affected cartridge and gently blot the nozzle plate on a slightly damp (not wet) lint-free cloth or paper towel for a few seconds, then reinsert and try again.
5. Print regularly, even just a test page weekly, to help prevent future clogs from forming.
6. Consider replacing a cartridge that's old or has been low for a long time, since fresh ink flows more easily through partially clogged nozzles.

Tools and parts

• Lint-free cloth or paper towel

When to call a pro

If nozzles remain clogged after several cleaning cycles and manual blotting, the print head itself may be permanently damaged, and on printers with a separate replaceable print head, that part may need professional replacement.

Safety