Brother HL-4000CN - Page 330

V
I-33
ABCDEFGHJ
1
2
3
4
5
6
2.9 Fusing and Transportation
FUSER ASSY
PL9.1
TEMP SENSOR
CONN-
ECTOR
DOUBLE
PLUG
MCU AND HVPS PWB
PL15.1
MCU AND HVPS PWB
PL15.1
EXIT SENSOR
P323
3
J13
17
YEL YEL
2
YEL YEL
18
+3.3VDC
(CH1.1)
DC COM
(CH1.1)
P323
1
J138
3
P138
3
J13
19
YEL YEL
+3.3VDC
EXIT PAPER
SENSED(L) +3.3VDC
DOUBLE
PLUG
P138
1
2
J138
5
4
P321
A1
A2
J232
A5
A4
CONN-
ECTOR
J232
A3
P321
A3
21
DC COM
(CH1.1)
YEL YEL
51
A5A1
J322
1
J322
2
A4 A2 4 2 20
YEL YEL
J12
20
DRIVE
PWB
PL15.1
J42
11
J61
4
LVPS
PL15.1
J165
5
HEATER
CONTROL
J162
2 3
AC RETURN
(CH1.1)
3
HEATER
J325
1
THERMOSTAT
2 2
1 1
N.C.
AC POWER
(CH1.1)
HEATER ON
CONTROL
LOGIC
DC COM
FUSER TEMP SENSOR
2.8.6
UNFUSED
PRINT
2.9.2
FUSER
DRIVE
2.9.1 Fusing and fuser heat control
2.9.6
FUSING
2.9.4
FUSED
PRINT
2.9.3
HEAT
AIR
DI-2
B
C
D
B
C
D
CONTROL
LOGIC
2.9.6
EXIT
PAPER
SENSED
SIGNEL
1
TEMP
SENSOR
SIGNAL
1
1
Imaginary Line
A
A