Signwarehouse

Hold the UP DOWN & RIGHT Buttons down, continue to hold these buttons down while Powering on the machine

Once it boots up into the Maintenance Mode you can release the 3 buttons

Press the RIGHT Button until you see CHECK 14 HEAD REPLACE

NOTE: Head Ranks consist of 3 rows of 8 characters 

When entering the characters you will see 1 row at a time

Press ENTER

You will see the 1^st row of characters, write them down

Press the RIGHT Arrow Button to get to the 2^nd row of characters, write them down

Press the RIGHT Arrow Button to get to the 3^rd row of characters, write them down

Press the ENTER Button until the curser is at the last Character of the 3^rd Row, press the up or down button and change the value of the last character by one digit or letter

Press ENTER to save this value and then press ENTER to confirm this change

Turn the machine off for at least 30 seconds

Hold the UP DOWN & RIGHT Buttons down, continue to hold these buttons down while Powering on the machine

Once it boots up into the Maintenance Mode you can release the 3 buttons

Press the RIGHT Button until you see CHECK 14 HEAD REPLACE

Navigate back to the 3^rd row and change the last digit back to the original value

Press ENTER to save this value and then press ENTER to confirm this change

Turn the machine off

Turn the machine on normally