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  6. Factory Test Modes
  • ZD620 and ZD420 Desktop Printers User Guide
Factory Test Modes

Factory Test Modes

When placed in these modes, the printer begins printing various test patterns which you can use to evaluate printer performance.
Your ZD series printer comes with the following print modes which are intended for factory tests:
Test mode 1
Hold
PAUSE
 ( ) when turning printer power ON to initiate this mode.
Test mode 2
Hold
PAUSE
 ( ),
FEED
   ( ), and
CANCEL
 ( ) all simultaneously for two seconds with printer power ON to initiate this mode.
These test modes consume a considerable amount of media.
To exit either mode, press and hold
POWER
 down while switching printer power OFF. Release the button when the printer has fully powered down.