Operational Check Of Sensors (Function Code 32) - Brother DCP-L8400CDN Service Manual

1.3.10 Operational check of sensors (Function code 32)

<Function>
This function is used to check that the sensors are operating normally.
<Operating procedure>
(1) Press the 3 and 2 keys in this order in the initial state of the maintenance mode.
"C1C2MPCVRCPO****" is displayed on the LCD.
When the T2 paper tray unit is not installed, "C1**MPCVRCPO****" is displayed, and the
machine beeps 400Hz OFF, 400Hz small, 400Hz middle, 400Hz large, 1,100Hz OFF,
1,100Hz small, 1,100Hz middle, and 1,100Hz large tones cyclically to test the speaker.
Note:
To stop beeping, press the SET key.
(2) Pressing the Mono Start key displays the next group.
The table below summarizes the displays on the LCD, sensor names and detection status.
LCD
C1
C2
MP
CV
RC
PO
L2
T2
MR
RM
RA
FW
NK
NC
NM
NY
KC
CC
MC
YC
Sensor names
T1 paper feed sensor
T2 paper feed sensor
MP paper empty sensor
Front cover sensor
Back cover sensor
Eject sensor
T2 plate origin sensor
T2 connect sensor
MP registration front sensor
Registration front sensor
Registration rear sensor
Waste toner sensor
New toner sensor (Black)
New toner sensor (Cyan)
New toner sensor (Magenta)
New toner sensor (Yellow)
Toner sensor (Black)
Toner sensor (Cyan)
Toner sensor (Magenta)
Toner sensor (Yellow)
Detection status (displayed/not displayed)
Paper tray 1 installed/not installed
T2 paper tray unit installed/not installed
MP tray paper not detected/detected
Front cover closed/open
Back cover closed/open
Paper not detected/detected
Plate down of T2 paper tray unit/
Plate up of T2 paper tray unit
T2 paper tray unit connected/not connected
Paper not detected/detected
Paper not detected/detected
Paper not detected/detected
Waste toner detected/not detected
Toner detected/not detected
Toner detected/not detected
Toner detected/not detected
Toner detected/not detected
5-18
OFF/ON
OFF/ON
OFF/ON
OFF/ON
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