Brother MFC620CN Service Manual page 305

(Note 2) This machine counts all purge operations performed since produced in order to prevent the ink
absorber box from overflowing with drained ink. An initial purge, for example, advances the
counter by 187 + 420 = 607. When the counter approaches 6400, "MACHINE ERROR 46"
appears, and further purge operations are prohibited. Replace the ink absorber box and reset
the purge counter with the following procedure.
This machine counts all flushing operation performed since produce in order to prevent the ink
absorber box from overflowing with drained ink. Replace the flushing case when the counter
approaches 434027778, and reset the flushing counter with the following procedure.
Either the purge count or the flushing count approaches the number described above, the
"MACHINE ERROR 46" occurs. Check out both purge and flushing counter in function code 80
when "MACHINE ERROR 46" appears, and replace the defective counter then reset the
counter.
Resetting purge counter and flushing counter
MFC620CN/425CN/420CN/410CN/215C/210C and FAX2440C
1) Press the Menu/Set and Black Start keys. Next press the
maintenance mode.
TIP: FAX models equipped with numerical keypads can enter the maintenance mode in the
same way as conventional models; that is, by pressing the Menu/Set, *, 2, 8, 6 and 4 keys
in this sequence.
2) Press the 8 and 0 keys in this order in the initial stage of the maintenance mode to call up
the machine's log information. (Function code 80. Refer to
3) Press the Black Start key several times until the purge count or flushing count appears on
the LCD.
4) Press the 2, 7, 8, and 3 keys in this order to reset the purge count or flushing count to zero.
5) Press the Stop/Exit key to return to the initial stage of the maintenance mode.
6) Press the 9 key twice to return to the standby state.
DCP315CN/310CN/120C/117C/115C/110C
1) Press the Menu and Mono Start keys. Next press the
machine enter the maintenance mode.
2) Press the
press the
3) Press the Mono Start key several times until the purge count or flushing count appears on
the LCD.
4) Reset the purge count or flushing count to zero by using the
Press the
same way, enter 7, 8 and 3.
5) Exit from the maintenance mode by using the
Press the
press the
key several times to display 8 on the LCD and then press the Set key. Again
key several times to display 0 and then press the Set key
key several times to display 2 on the LCD and then press the Set key. In the
key several times to display 9 on the LCD and then press the Set key. Again
key several times to display 9 and press the Set key.
8 - 4 7
key four times to enter the
Chapter 8, Section
key four times to make the
and Set keys as follows:
and Set keys as follows:
8.5.20.)
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