Brother MFC-9320CW Service Manual page 170

(4) Instructions received from the remote terminal [checking the NSC, DTC, NSS, and DCS]
Code 1 Code 2
40 02
40 03
40 05
40 06
40 07
40 10
40 13
40 17
40 20
(5) Command reception [checking the NSF and DIS after transmission of NSS and DCS]
Code 1 Code 2
50 01
(6) ID checking
Code 1 Code 2
63 01
63 02
63 03
(7) DCN reception
Code 1 Code 2
74
Illegal coding system requested.
Illegal recording width requested.
ECM requested although not allowed.
Polled while not ready.
No document to send when polled.
Nation code or manufacturer code not correct.
Polled by any other manufacturers' terminal while waiting for
secure polling.
Invalid resolution selected
Invalid full color mode selected.
Vertical resolution capability changed after compensation of
background color.
Password plus "lower 4 digits of telephone number" not coincident.
Password not correct.
Polling ID not correct.
DCN received.
3-89
Cause
Cause
Cause
Cause
Confidential