How to fix MNT REQ 0080

RTC (Real Time Clock) is not set

Turn OFF the printer

Press and Hold the following keys on the printer:


Press <DOWN> until you see <CLEAR COUNTERS>

then press <MENU>

Press <DOWN> until you see <RTC> then press <MENU>

00 / 00 / 00 / 00

Year / Month / Day / Time (hour)

Press <MENU> to accept the settings