1. ZD421 and ZD621 Series Desktop Printers User Guide
  2. Maintenance
  3. Cleaning
  4. Replacing the Printhead
  5. Replacing the Printhead – ZD421/ZD621 Thermal Transfer Ribbon Roll Printer Models
  • ZD421 and ZD621 Desktop Printers User Guide
Replacing the Printhead – ZD421/ZD621 Thermal Transfer Ribbon Roll Printer Models

Replacing the Printhead – ZD421/ZD621 Thermal Transfer Ribbon Roll Printer Models

  1. Use these steps to remove the printhead:
    1. Turn printer power OFF and open the printer.
      1
      Printhead
    2. Push the printhead release latch toward the printhead (shown in green for visibility in the following figure).
      The right side of the printhead releases down and away from the printhead actuator arm.
    3. Swing the loose right side of the printhead out of the printer. Pull it to the right a little to get the left side of the printhead clear. Pull the printhead down and free of the ribbon carriage to gain access to its attached cables.
    4. Gently but firmly pull the two printhead cable bundle connectors off of the printhead.
      1
      Connectors
      2
      Printhead assembly
  2. To replace the printhead:
    1. Push the right side printhead cable connector into the printhead.
      The connector is keyed to only insert one way.
    2. Push the left side printhead cable connector onto the printhead.
    3. Insert the center tab on the printhead assembly into the center slot on the printhead actuator arm.
    4. Insert the left side tab of the printhead assembly into the recessed slot on the left side of the printhead actuator arm.
      1
      Slot
      2
      Tab
    5. Push the right side of the printhead into the printer until the latch locks the right side of the printhead into the printer.
    6. Verify that the printhead moves up and down freely when pressure is applied and remains locked when released.
    7. Clean the printhead. Use a new pen to wipe body oils (fingerprints) and debris of the printhead. Clean from the center of the printhead to the outside to avoid damaging the printhead. See Cleaning the Printhead.
    8. Reload media. Plug in the power cord, turn on the printer, and print a configuration report to ensure proper function. See Test Printing with a Configuration Report.