Service manual

V-19
Step Check Remedy Step
9
Checking fuser motor
Does fuser motor function normally?
Using fuser motor diagnostic tool, check
by digital output test.
Replace MCU
HL-4200
Go to step [10]
10
Checking PWBA HBN DRV for signal
Is P/J52-1PIN<=>P/J60-2PIN +24VDC?
Go to step [11]
Replace PWBA
HBN DRV
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
HL-4200