Knowledge Base

How do I perform a self test on my Zebra LP/TLP Thermal Printer?

This is the LP/TLP sequence. ZP450 and QL printers use different button holds — do not mix them.

Turn the rear power switch off.
Hold the green feed button and turn power on.
Keep holding until the light flashes red, then release.
Wait until the printer issues about three empty pages and one diagnostic page, then press Feed once more.
The next page should say “Out of Dump.” That ends diagnostic mode and returns you to normal printing.

Still stuck? Call us.

Our team configures printers for Amazon, Shopify, eBay, and warehouse setups every day.