10
Self-Test
The ‘Self-Test’ lets you know if your printer is operating properly. This test is independent
of the QT720 Payment Terminal, and independent of all software.
Running the Test:
1.
Make sure a suitable paper roll is installed and printer lid is closed properly.
2.
Hold down the FEED button until the self-test begins. The ‘Self-Test’ will print a
test pattern. The printed pattern should have good contrast and be consistent in
appearance. If the test print is poor, see the
Troubleshooting
section in this
guide.
3.
The printer is ready to receive data as soon as it completes the ‘Self-Test’.
Storage
Do not store the printer in damp places or areas with large temperature variations.
Condensation on the printer may cause damage to the thermal head or unit failure.
Do not store the printer in dusty places.
When storing the printer for longer than six months, the printer lid must be kept open
such that the Paper Feed roller is not in contact with the Thermal Print head. If the Paper
Feed roller and Print head have continued direct contact for prolonged periods the Feed
roller can become deformed and may affect normal operation.
