How to Troubleshoot Zebra Printer

Try the following methods to troubleshoot your Zebra printer.

Power-Cycling your Printer and Print Server

1. Detach the following connections:
1. The Zebra printer from the power outlet.
2. The Zebra printer from the print server device.
3. The print server from the network, disconnecting its connection via an ethernet cable (if print server is connected via Wi-Fi, skip this step).
4. The print server to the power outlet.
2. Let devices stand and wait 30 seconds.
3. Reconnect the devices and cables in the following order:
1. The USB cable from Zebra printer to print server.
2. The ethernet cable from the network to the print server (if print server connects via Wi-Fi, skip this step).
3. The Zebra printer to the power outlet.
4. The print server to the power outlet.
4. Perform a test print in Jazva.

Performing a test Print on your Printer

1. Turn on your printer.
2. Press and hold the Feed button until the green button flashes once, then release.
3. One test label should be printed.

Manual Calibration

This is from Zebra’s official GK420d user manual.

Manual calibration is recommended whenever you are using pre-printed media or if the printer will not auto-calibrate.

1.    Make sure the media is loaded.
2.    Turn on your printer.
3.    Press and hold the Feed button until the green button flashes once, then twice and continuing until the flash groups reach a group of seven flashes.  Release the feed button.
4.    The printer will set the media sensor for the label backing being used.  After it is done making the adjustment, the roll will automatically feed until a label is positioned at the printhead.  A profile of the media sensor settings will print. Upon completion, the printer will save the settings in memory and the printer is ready for normal operation.
5.    Press the Feed button and one entire blank label will feed.

Reset Your Printer to Factory Settings

1. Turn on your printer.
2. Press and hold the Feed button for 10 light flashes, the flashes will be in sequence, a flash of 1, then 2, then 3 and 4 (a total of 10) then release the button.
3. A series of test labels will be printed.