Brother MFC620CN Service Manual page 299

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(4) Press the Menu/Set or Set key.

The machine beeps, shows the "INPUT ACCEPTED" on the LCD, and writes the entered

property code into the EEPROM. Then it returns to the initial stage of the maintenance mode.

NOTE: If the entered data contains any checksum error, the machine beeps, shows the

"INPUT ERROR," and then returns to the ready-to-enter state. Go back to step (3).

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