Brother HL-4000CN Service Manual page 329

A B
2.8.8 Monitoring
MCU AND HVPS PWB
1 PL15.1
2.8.3
1 TONER CARTRIDGE(Y) CONTROL
SET SIGNAL LOGIC
2.8.3
TONER CARTRIDGE(M)
1
SET SIGNAL
TONER CARTRIDGE(C)
2.8.3 1
SET SIGNAL
2 2.8.3 1 TONER CARTRIDGE(K)
SET SIGNAL
2.8.5
NO TONER
1
SENSED SIGNAL
3
2.8.7
1
HUMI SIGNAL
2.8.7
1
TEMP SIGNAL
2.8.7 ADC SENSOR
1
SENSED SIGNEL
4
2.8.7
WASTE TONER FULL
1
SENSED SIGNAL
1
Imaginary Line
5
6
C D E
CONTROL PANEL
PL1.1
Reinsert Yellow Toner (Y)
Reinsert Magenta Toner (M)
Reinsert Cyan Toner (C)
Reinsert Black Toner (B)
Replace Yellow Toner (Y)
Replace Magenta Toner (M)
Replace Cyan Toner (C)
Replace Black Toner (B)
10-354
9-340
9-342
Clean Up CTD Sensor
Reinsert Transfer Roll
Replace Transfer Roll
VI-32
2.8 XEROGRAPHICS
F G
IOT Envirnment Sensor Error
10-354
IOT CTD Sensor Error
9-340
IOT Low Density Error
9-342
H J