Brother MFC640CW Service Manual page 198

8.4.19 Travel of Head/Carriage Unit (for Recovery from Paper Jam Caused
at Maintenance Unit) (Function code 75) ....................................................... 8-42
8.4.20 Purging Operation (Function code 76)........................................................... 8-43
8.4.21 Display of the Equipment's Log (Function code 80) ........................................ 8-46
8.4.22 Equipment Error Code Indication (Function code 82)...................................... 8-49
8.4.23 Output of Transmission Log to the Telephone Line (Function code 87)
(Not applicable to DCP340CW) .................................................................... 8-49
8.4.24 Cancellation of the Pin TX Lock Mode (Not applicable to U.S.A. models
or DCP340CW)........................................................................................... 8-50
Confidential