Zebra ZD420/421 Printer Setup
Adding a ZD420/421 Printer to Your Network
The easiest way to add a printer to your local network and set up the print media options is to download the Zebra® Printer Setup Utility app. This app can find and connect to Zebra® printers communicating via a network or Bluetooth. A network connection is required if you have multiple printers, as Bluetooth can only support one printer connection at a time.
Follow the tutorials below to set specific parameters including connectivity, calibration, media type, printer language and print quality to optimize performance.
Recalibrate the ZD420 Media Sensor
If you have trouble with your printer printing extra blank labels, it may be time to clean or recalibrate the media sensor.
The Media Sensor detects the length of a label and the gap between labels and may need to be cleaned or calibrated from time to time or when changing to a different brand/ type of label. To clean, gently wipe the top of the sensor with a damp cloth. Ensure the sensor is positioned left to right in a position that the center of the labels will pass over it. If this does not resolve the problem, follow the steps below to recalibrate the sensor.
Calibrating The Media Sensor
- Your media must be loaded and the printer power on.
- Press pause button for 2 seconds to enter advanced mode.
- The status indicator will show solid yellow when ready.
- Press pause button to start the manual media calibration process.
- The media indicator will flash yellow then the pause indicator will flash.
- Open the printer and remove a few labels from the liner & place the liner where the labels were removed directly above the movable sensor.
- Close the printer and press pause once.
- The media indicator will flash as the media liner is measured.
- When complete the pause indicator will begin flashing.
- Open the printer and reposition the media so a label is directly positioned above the movable sensor.
- Close the printer and press pause once.
- The printer will feed and measure several labels.
- The printer will return to a ready state when complete with a green status indicator.
Replacing the ZD420 Print Head
If you have trouble with your printer printing poor quality labels (streak or blank areas), it may be time to replace the print head.
Additional Printer Support
Please visit the Zebra® Support website for additional info about the ZD420 printers.
