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How do I change the print darkness on the Zebra ZD420?

Instructions on how to manually adjust the Print Darkess on the Zebra ZD420

  1. The media must be loaded and the printer power on
  2. Press pause for 2 seconds to enter advanced mode
  3. The staus indicator will show solid yellow when ready
  4. Press feed button twice to select Darkness setting
  5. Darkness mode selected
  6. Press pause once to start the adjustment
  7. The printer will print a test pattern showing the current darkness number and several barcode patterns and then pause momentarily. When a desired label prints, press feed to set the darkness level. 
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