Sensor Operational Check (Function Code 32) - Brother MFC-8460N Servise Manual

8.4.9

Sensor Operational Check (Function code 32)

Function
This function allows you to check whether the 21 sensors work correctly.
Operating Procedure
(1) Press the [3] and [2] keys in this order in the initial stage of the maintenance mode.
The machine beeps 1100 Hz and 400 Hz tones cyclically through the following volumes
for testing the speaker. To stop beeping, press the [OK] key.
If the sensing status are as listed below, the LCD will show the following:
"C1P1C2P2T2T3BCST", "TNMPNTRMRSPO" and "DFDRDLDSFCFHCV"
(which can be switched by pressing the [Start] key for machines.)
Given below is the relationship among the LCD indication, sensor names and sensor
status.
LCD
C1
P1
C2
P2
T2
T3
BC
ST
TN
MP
NT
RM
RS
PO
Fig. 8-9
Sensors
Tray1 sensor
Tray1 paper sensor
Tray2 sensor
Tray2 paper sensor
Tray2 connect sensor
Tray3 connect sensor
Back cover sensor
(Used for both standard tray and
duplex tray.)
Paper ejection tray stack sensor
Toner sensor
Multi-purpose tray sensor
New toner sensor
Front registration sensor
Rear registration sensor
Paper ejection sensor
8-16
Sensing status
Tray installed.
Recording paper detected.
Tray installed.
Recording paper detected.
Tray2 connected.
Tray3 connected.
Back cover detected.
(Tray detected.)
Stack detected.
Toner detected.
Recording paper detected.
New toner detected.
No paper detected.
No paper detected.
No paper detected.
Confidential