Brother HL-4000CN, Руководство по обслуживанию

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V-22
Remedy
Step Check
Yes No
3
Checking REGI clutch harness for
connection
Is it connected normally to the REGI
SENSOR?
Go to step [4]
Replace the
parts
concerned
4
Checking REGI clutch harness for
continuity
Is J181<=>J18 continuous normally?
Go to step [5]
Replace chute
REGI
5
Checking MCU and HVPS PWB for signal
Is P/J18-3<=>P/J18-2 0VDC? Replace REGI
sensor
Go to step [6]
6
Checking main drive motor for operation
Does the main drive motor run when
printing 1 sheet? Tray go to step
[16]
MSI go to step
[28]
Go to step [7]
7
Checking main drive motor
Does main drive motor function normally?
Using diagnostic tool, check by digital
output test.
In the test, close the interlock SW.
Replace MCU and
HVPS PWB
Go to step [8]
8
Checking drive PWB for signal
Is P/J48-1PIN<=>P/J60-2PIN +24VDC?
Go to step [12] Go to step [9]
9
Checking interlock SW
Is the interlock SW pressed normally?
Go to step [10]
Replace the
parts
concerned
10
Checking interlock SW for signal
Check the following if +24VDC is present.
SW-1PIN<=>P/J60-2PIN
SW-2PIN<=>P/J60-2PIN
Replace deive
PWB
Go to step [11]
11
Checking drive PWB for power supply
Is P/J60-1PIN<=>P/J60-2PIN +24VDC? Replace deive
PWB
Go to FIP-DC
12
Checking drive PWB for power supply
Is P/J61-8PIN<=>P/J61-7PIN +5VDC?
Go to step [13] Go to step [14]
13
Checking drive PWB for power supply
Is P/J61-6PIN<=>P/J61-5PIN +3.3VDC?
Go to step [15] Go to step [14]
14
Checking harness ASSY LVNC for
continuity
Is J61<=>J165 continuous normally?
Go to FIP-DC
Replace
harness ASSY
LVNC
15
Checking harness ASSY DRV1 for
continuity
Check the following for continuity.
J41-30PIN<=>J11-11PIN
J41-31PIN<=>J11-10PIN
J41-33PIN<=>J11-8PIN
Replace MCU
and HVPS PWB
Replace
harness ASSY
DRV1
16
Checking tray1 turn clutch ASSY for
operation
Does the turn roll in the feeder run when
printing 1 sheet?
Go to step [22] Go to step [17]
17
Checking tray1 turn clutch ASSY
Does tray1 turn clutch ASSY function
normally?
Using tray1 turn clutch ASSY diagnostic
tool, check by digital output test.
In the test, close the interlock SW.
Check the clutch
for slip, or the gear
for damage.
Go to step [18]
18
Checking drive PWB for signal
Is P/J47-13PIN<=>P/J60-2PIN +24VDC?
Go to step [19]
Replace drive
PWB