1. GK420T Desktop Thermal Printer User Guide
  2. Print Operations
  3. Print Meter
  • GK420t Desktop Thermal Printer User Guide
Print Meter

Print Meter

Your printer can report printhead maintenance alerts.
It can be set up to alert you of the need for cleaning or provide early warnings of the need to replace printheads when they approach their calculated working life span. If Real-Time Clock (RTC) is installed in the printer, printhead reporting will also include the date. These print metering alerts are disabled by default.
Many print meter messages and reports are customizable. For information on the print meter, see the ZPL Programming Guide or the EPL Programming Guide.
To activate print meter alerts, send one of these commands to the printer:
  • oLY
     EPL command
  • ^JH,,,,,E
     ZPL command