Perform a self test on LP2844/TLP2844, LP2824/TLP2824, LP2442/TLP2442 and LP2742/TLP 2742 model thermal printer
- Turn power switch in back to off
- Hold green button, turn power on.
- Hold green button until it starts flashing red, release green button.
- Wait until printer spits 3 empty page, and 1 page of diagnostic results, hit green button once more.
- Print will spit another page, with “Out of Dump” on it, that ends the self-test mode, return to normal page mode
