Brother HL-4000CN Service Manual page 323

A B
2.8.2 Development
MCU AND HVPS PWB DRIVE PWB
1
PL15.1 PL15.1
CONTROL
J11 CLOCK B J41
LOGIC
1 40
YEL YEL
CLOCK XB
2 39
YEL YEL
CLOCK A
3 38
YEL YEL
2
CLOCK XA
4 37
YEL YEL
D/A MAIN MOTOR
5 36
YEL YEL
3
2.8.1
LATENT IMAGE(Y)
DISPENSED
2.8.5
TONER(Y)
MCU AND HVPS PWB
PL15.1
4
2.8.1
CONTROL
LATENT IMAGE(M)
LOGIC
DISPENSED
2.8.5
TONER(M)
2.8.1
LATENT IMAGE(C)
5
DISPENSED
2.8.5
TONER(C)
2.8.1
LATENT IMAGE(K)
DISPENSED
2.8.5
6 TONER(K)
C D
DEVE DRIVE ASSY
DO-a
(NORMAL SPEED)
PL14.1
DO-b (HARF SPEED)
MOTOR
J49 CLOCK A
DRIVE
3
DC COM
CLOCK B
4
DC COM
CLOCK XA
5
MOT
DC COM
CLOCK XB
6
DC COM
1
2
+24VDC
SWITCHED
(CH1.1)
PRINT HEAD
DO-32 CARTRIDGE ASSY
PL11.1
DO-34
DEVELOPER(Y)
J601 DEVE BIAS(Y)
1
DO-36
DEVE BIAS(M) DEVELOPER(M)
J602
1
DO-38
DEVELOPER(C)
J603 DEVE BIAS(C)
1
DO-3a
DEVELOPER(K)
J604 DEVE BIAS(K)
1
VI-26
E F G
DRIVE MECHANISM
DEVELOPMENT
ZN
ZN
ZN
ZN
2.8 XEROGRAPHICS
H J
ZN
ZN
ZN
ZN
2.8.6
DEVELOPED
IMAGE(Y)
DEVELOPED
2.8.6
IMAGE(M)
2.8.6
DEVELOPED
IMAGE(C)
DEVELOPED 2.8.6
IMAGE(K)