Brother HL-4200CN Service Manual page 229

Step
Checking harness ASSY DRV2-2 for
continuity
27
Is J12-10PIN<=>J42-21PIN continuous
normally?
Checking clutch ASSY turn MSI for
operation
28
Does the turn roll in the MSI run when
printing 1 sheet?
Checking clutch ASSY turn MSI
Does clutch ASSY turn MSI function
normally?
29 Using clutch ASSY turn MSI diagnostic
tool,
check by digital output test
In the test, close the interlock SW.
Checking clutch ASSY MSI turn for
resistance value
30
Remove the clutch connector J19.
Is J19-1PIN<=>J19-2PIN less than 200�?
Checking solenoid feed MSI for operation
Does the feed gear in the MSI run when
printing 1 sheet?
31
Checking solenoid feed MSI
Does solenoid feed MSI function
normally?
32
Using solenoid feed MSI diagnostic tool,
check by digital output test.
In the test, close the interlock SW.
Checking solenoid feed MSI for resistance
value
33
Remove J132 from MSI feed solenoid
Is J132-1PIN<=>J132-2PIN less than
100 ?
Checking harness ASSY front 2 for
continuity
34
Check the following for continuity.
P132-1PIN<=>J139-11PIN
P132-2PIN<=>J139-10PIN
Checking harness ASSY front 1A for
continuity
35
Check the following for continuity.
P139-1PIN<=>J13-11PIN
P139-2PIN<=>J13-10PIN
Check
V-23
Remedy
Yes
Replace
Replace MCU
harness ASSY
HL-4200
DRV2-2
Go to step [29]
Go to step [31]
Go to step [30]
Check the clutch
f
Go to step [30]
or slip, or the
.
gear for damage
Replace MCU Replace clutch
HL-4200 ASSY turn MSI
Check parts for
missing and
Go to step [32]
change paper, if
Go to step [33]
no problem
Check the spring
and stopper of
Go to step [33]
solenoid feed MSI
for disengagement
Replace
Go to step [34] solenoid feed
MSI
Replace
Go to step [35] harness ASSY
front 2
Replace
Replace MCU
harness ASSY
HL-4200
front 1A
No
With tool
Without tool
With tool
Without tool