Canon PIXMA MG5750: nozzle check and print-head cleaning

Check the printed pattern before cleaning; use deep cleaning only after the normal routine fails.

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Check, clean and compare

Load plain white A4 or Letter paper in the cassette and register the matching size and Plain paper. Open the output tray.
On HOME, select Setup → Maintenance → Print nozzle check pattern. Press OK at each selection, then Yes → OK.
If the pattern has gaps or white streaks, select Setup → Maintenance → Cleaning → OK → Yes → OK. Wait for it to finish, then accept the nozzle-check prompt.
If two normal cleans do not resolve the gaps, use Maintenance → Deep cleaning → OK → Yes → OK, then check the new pattern.

If every nozzle line is complete but straight lines look displaced, use alignment instead of more cleaning.

Technical references