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M-9
"16 TONER EMPTY " is displayed
Possible cause
Step
EP-ED cartridge
1
High-voltage
2
electrode
High-voltage
3
power supply
PCB
HV harness
4
Main PCB
M-10
"13 JAM XXXXXX" is not displayed even if a paper jam has occured
(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
Take the EP-ED 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 P4-13 in high-voltage power
supply PCB connector higher than that of P4-11,
when the EP-ED 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?
Result
Yes
Yes
Yes
Yes
No
Result
No
No
No
Yes
VI - 4
Remedy
The problem was caused by
toner onesided due to too
little toner remaining.
Prepare to replace the new
cartridge.
Clean the electrode.
Replace the high-voltage
power supply PCB assy.
Replace the HV harness.
Replace the main PCB assy.
Remedy
Reassemble or replace the
paper delivery actuator and
regist sensor actuator.
Replace the fixing PCB assy
or the paper feed/size-sw PCB
assy.
Replace the fuser harness
or the feed flat cable.
Replace the main PCB assy.
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Troubleshooting
