With the printer power off, press and hold the Feed button while you turn on the power. Troubleshooting a Zebra ZP450 thermal printer If the light still does not return to green, call UPS Technical Support. If it still does not return to green, repeat the Dump (Reset) Mode procedure, beginning with step 1. Solid Red Light Tip: If a solid red light occurs, turn the printer off for 10 seconds and then back on. Press the Feed button once to exit Dump Mode.This is not necessarily an indication that the printer is malfunctioning (see Solid Red Light Tip below).

If you hold the Feed button too long, the red light will stop flashing, and you will not get a response from the printer. Tip: You must release the Feed button while the light is flashing red. The light turns green, three or four labels dispense approximately three seconds later, and then the Dump Mode printout starts printing.Ī. While the light is flashing red, release the Feed button. The light around the Feed button will begin flashing red. Press and hold the Feed button while turning the printer back on.Turn the printer off using the power switch on the back of the printer.To run your thermal printer through Dump (Reset) Mode, do the following: The transmissive sensor, which detects the margins between labels, is not dirty.Labels are not jammed in the label path.The labels are loaded in the printer and no labels are missing in the middle of the roll.The printer case is closed and latched.You chose the correct label stock dimension.View or download step-by-step instructions for troubleshooting thermal printers Prints random or unrecognizable letters or numbers.Printing stops and the status indicator light turns red.You may need to troubleshoot if one of the following problems occurs with your thermal Printer:

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