Brother HL-4000CN - Page 326

V
I-29
ABCDEFGHJ
1
2
3
4
5
6
2.8 XEROGRAPHICS
DRIVE PWB
PL15.1
2.8.5 Low toner sensing
J51
15
DC COM
(CH1.1)
LOW TONER
SENSOR(Y)
PL12.2
J441
3
GRY GRY
J441
2
MCU AND HVPS PWB
PL15.1
DRIVE PWB
PL15.1
J51
16
YEL YEL
J42
28
J12
3
YEL YEL
NO TONER(Y)
17
DC COM
(CH1.1)
LOW TONER
SENSOR(M)
PL12.2
J442
3
GRY GRY
J442
2 18
VIO VIO
10 21
NO TONER(M)
33
DC COM
(CH1.1)
LOW TONER
SENSOR(C)
PL12.2
J443
3
GRY GRY
J443
2
34
BLU
BLU
9 22
35
DC COM
(CH1.1)
LOW TONER
SENSOR(K)
PL12.2
J444
3
GRY GRY
J444
2
36
GRY
GRY
8 23
TONER DISPENSE MECHANISM
NO TONER(C)
NO TONER(K)
1
N.C.
1
N.C.
1
N.C.
1
N.C.
NO TONER
CHECK
CONTROL
NO TONER
SENSED(L) +3.3VDC
YEL YEL
YEL YEL
YEL YEL
7 24
YEL YEL
NO TONER CHECK(C)
NO TONER CHECK(M)
NO TONER CHECK(Y)
NO TONER CHECK(K)
+3.3VDC
DI-c
DI-d
DI-e
DI-f
(Y)
(M)
(C)
(K)
A
B
C
D
A
B
C D
CONTROL
LOGIC
NO TONER
SENSED SIGNAL
2.8.8
1
1
Imaginary Line