Brother HL 2060 - B/W Laser Printer Service Manual page 95

M-7 "14 NO CARTRIDGE" is displayed
Possible cause Step
EP-ED HC 1
cartridge
Transfer unit 2
electrode
High-voltage 3
power supply
PCB
HV harness 4
Main PCB
M-8 "16 TONER EMPTY" is displayed
Possible cause Step
EP-ED HC 1
cartridge
High-voltage 2
electrode
High-voltage 3
power supply
PCB
HV harness 4
Main PCB
M-9 "13 JAM XXXXXX" is not displayed even if a paper jam has occurred
(or is displayed even if a paper jam has not occurred) XXXXXX is TRAYS/INSIDE/REAR/DUPLEX.
Possible cause Step
Actuator 1
Paper delivery 2
sensor
Regist sensor
Fuser harness 3
Feed flat cable
Check
Is an EP-ED HC cartridge installed correctly?
Is the electrode of the transfer unit dirty?
Is the voltage of P4-13 in the high-voltage
power supply PCB connector higher than that
of P4-11 over 2.5V?
Is the voltage of P6-13 in the main PCB
connector higher than that of P6-11 over 2.5V?
Check
Take the EP-ED HC cartridge out of the printer
and rock it to distribute the toner evenly.
When the cartridge is returned to the printer,
does the LCD show "00 READY" ?
Are the developing bias or the toner sensor
electrode of the high-voltage power supply
PCB assy dirty?
Is the voltage of P2-13 in high-voltage power
supply PCB connector higher than that of
P2-11, when the EP-ED HC cartridge which is
full with toner is installed?
Is the voltage of P6-13 in the main PCB
connector higher than that of P6-11?
Check
Does the actuator of the paper delivery sensor
or the registration sensor operate smoothly?
Does the voltage of P2-1 in the fixing PCB
connector rise from 0V to 5V when the eject
sensor is covered, or the voltage of P5-5 in the
paper feeder PCB connector rise from 0V to
5V when the registration sensor is covered?
Does the voltage of P11-1 in the main PCB
connector rise from 0V to 5V when the eject
sensor is covered, or the voltage of P3-5 in the
main PCB connector rise from 0V to 5V?
VI-13
Result Remedy
No Install the EP-ED HC
cartridge correctly.
Yes Clean the electrode of the
transfer unit.
Yes Replace the high-voltage
power supply PCB assy.
Yes Replace the HV harness.
No Replace the main PCB
assy.
Result Remedy
Yes The problem was caused
by toner one-sided due to
too little toner remaining.
Prepare to replace the
new cartridge.
Yes Clean the electrode.
Yes Replace the high-voltage
power supply PCB assy.
Yes Replace the HV harness.
No Replace the main PCB
assy.
Result Remedy
No Reassemble or replace
the paper delivery
actuator and regist sensor
actuator.
No Replace the fixing PCB
assy or the paper
feed/size-sw PCB assy.
No Replace the fuser harness
or the feed flat cable.
Yes Replace the main PCB
assy.