Replacing the Printhead – ZD421 Thermal Transfer Ribbon Cartridge Printer Models

Replacing the Printhead – ZD421 Thermal Transfer Ribbon Cartridge Printer Models

  1. To remove the printhead, follow these steps:
    1. Turn printer power OFF and open the printer.
    2. Pull the two release arms out to release the ribbon drive transport. See Accessing the Printhead of the ZD421 Ribbon Cartridge Printer.
    3. Swing the printhead actuator arm up until it touches the printer’s top cover. Hold it in the position shown below for access to the printhead, then push the printhead release latch toward the printhead (shown as pink for visibility in the image).
      The right side printhead releases down and away from the printhead actuator arm.
    4. 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 printhead actuator arm to gain access to its attached cables.
    5. Gently but firmly pull the two printhead cable bundle connectors off of the printhead.
      1
      Connectors
      2
      Printhead assembly
  2. Follow these steps 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.
      1
      Tab
      2
      Slot
    4. Insert the left side tab of the printhead assembly into the recessed slot on the left side of the printhead actuator arm.
      1
      Tab
      2
      Slot – both sides
    5. Push the right side of the printhead into the printer until the latch locks the right side of the printhead into the printer.
      1
      Slot guide
    6. Verify that the printhead moves freely into the printer when pressure is applied (see arrow) and remains locked when pressure is released.
    7. Clean the printhead by using a new cleaning pen to wipe body oils (finger prints) and debris off the printhead. See Cleaning the Printhead.
    8. Reload media. Turn on the printer and print a status report to ensure proper function. See Test Printing with a Configuration Report.