Brother HL-4000CN, Руководство по обслуживанию

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V-20
Fuser JAM FIP
Remedy
Step Check
Yes No
1
Initial setting
Check the following for evidence of fault.
Sensor exit actuator replacing condition
Fuser ASSY replacing condition
Front cover replacing condition
Chute DUP in replacing condition
Transfer roll cartridge ASSY replacing
condition
Print head cartridge ASSY replacing
condition
Replace the parts
concerned
Go to step [2]
2
Checking fuser ASSY connector
Remove the fuser ASSY connector, and
check for broken or curved pins.
Go to step [3]
Replace the
parts
concerned
3
Checking sensor exit
Does sensor exit function normally?
Using sensor exit diagnostic tool, check by
digital input test.
Go to step [9]
Go to step [4]
4
Checking harness FSR2 for signal
Push the paper in the fuser ASSY
Is P/J138-3PIN<=>P/J138-2PIN 0VDC?
Go to step [6] Go to step [5]
5
Checking harness FSR2 for continuity
Is J232<=>J138 continuous normally?
Go to step [6]
Replace
harness ASSY
FSR2
6
Checking harness ASSY front 1A for
continuity
Is P138<=>J13 continuous normally?
Go to step [7]
Replace
harness ASSY
Front 1A
7
Checking fuser ASSY
Check if an error occurs though the
fuser ASSY was replaced with a new one.
Go to step [9] End of work
8
Checking fuser motor for operation
Does the fuser motor run when printing 1
sheet?
Check the gears
for meshing
Go to step [9]
9
Checking fuser motor
Does fuser motor function normally?
Using fuser motor diagnostic tool, check
by digital output test.
Replace MCU and
HVPS PWB
Go to step [10]
10
Checking drive PWB for signal
Is P/J52-1PIN<=>P/J60-2PIN +24VDC?
Go to step [11]
Replace drive
PWB
11
Checking harness ASSY DRV 1 for
continuity
Check the following for continuity.
J11-12PIN<=>J41-29PIN
J11-13PIN<=>J41-28PIN
J11-14PIN<=>J41-27PIN
J11-15PIN<=>J41-26PIN
J11-16PIN<=>J41-25PIN
Go to step [12]
Replace
harness ASSY
DRV 1
12
Checking fuser motor
Replace a new fuser motor, and check if
the fuser motor rotates when printing 1
sheet.
End of work
Replace MCU
and HVPS
PWB