1) Enter SERVICE MODE.....By pressing Menu THEN Copy THEN #.
2) Select TEST MODE.
3) Select [8] PRINTER TEST in TEST MODE.
4) Select 3. [EEPROM CLEAR].
5) Select 0. [INK COUNT].
6) Press the [OK] key. (On F30 printers, skip step (6) since there is no [OK] key .)
7) Press the [Stop/Reset] key (returning to the state of 3)), and then press the [ON/OFF] key.