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printhead calibration

  1. Canon M5 banding- Nozzle Optimization/ Printhead alignment Grayed out

    Hi, recently our Canon M5 has been showing signs of horizontal banding, and I'd like to fix it. However, all the options to automatically diagnose and fix it are grayed out. All the tools that include "Automatic nozzle optimization" show an uncheckable checkbox. It just says "print on" but does...
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