Brother HL-4000CN Service Manual page 258

Menu
Part/signal name
No.
FAN
DO-13
(HIGH SPEED)
FAN
DO-14
(LOW SPEED)
TONER MOTOR (Y)
DO-18
TONER MOTOR (M)
DO-1a
TONER MOTOR (C)
DO-1c
TONER MOTOR (K)
DO-1e
REGI CLUTCH
DO-20
MSI TURN CLUTCH
DO-22
MSI FEED SOLENOID
DO-24
TRAY1 TURN CLUTCH
DO-26
ASSY
TRAY1 FEED SOLENOID
DO-28
DO-30 HTC ON
DO-32 DEVE BIAS AC ON
DO-34 DEVE BIAS DC Y ON
DO-36 DEVE BIAS DC M ON
DO-38 DEVE BIAS DC C ON
DO-3a DEVE BIAS DC K ON
DO-3c IDT1 PLUS ON
DO-3e IDT1 MINUS ON
DO-40 IDT2 PLUS ON
DO-42 IDT2 MINUS ON
DO-44 IDT1 CLEANER ON
DO-46 IDT2 CLEANER ON
TRANSFER ROLL
DO-48
CARTRIDGE PLUS ON
TRANSFER ROLL
DO-4a
CARTRIDGE MINUS ON
DO-4c DTS ON
TRAY2 TURN CLUTCH
DO-50
ASSY
TRAY2 FEED SOLENOID
DO-52
TRAY3 TURN CLUTCH
DO-54
ASSY
TRAY3 FEED SOLENOID
DO-56
Test method
Check by hearing and visually that
the fan rotates in high-speed mode.
Check by hearing and visually that
the fan rotates in low-speed mode.
Check by hearing and visually that
the motor rotates.
Check by hearing and visually that
the motor rotates.
Check by hearing and visually that
the motor rotates.
Check by hearing and visually that
the motor rotates.
Check by hearing that the clutch
operates.
Check by hearing that the clutch
operates.
Check by hearing that the solenoid
operates.
Check by hearing that the clutch
operates.
Check by hearing that the solenoid
operates.
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
<WARNING!> <CAUTION!>
Check by hearing that the clutch
operates.
Check by hearing that the solenoid
operates.
Check by hearing that the clutch
operates.
Check by hearing that the solenoid
operates.
V-48
Reference
BSD
2.9.3
2.9.3
2.8.4
2.8.4
2.8.4
2.8.4
2.7.6
2.7.2
2.7.2
2.7.1
2.7.1
2.8.1
2.8.2
2.8.2
2.8.2
2.8.2
2.8.2
2.8.6
2.8.6
2.8.6
2.8.6
2.8.6
2.8.6
2.8.6
2.8.6
2.8.6
2.7.3
2.7.3
2.7.4
2.7.4