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Confidential
4.5 Toner & Drum Problems
4.5.1 If replace toner, cannot delete "Replace Toner".
4.5.2 Cannot detect toner
Identification failure for a new toner cartridge
4.5.3 Toner low
Toner is low
4.5.4 Replace toner
* When the printer is in the stop mode, LEDs indicate REPLACE TONER to guarantee the print
quality. On the other hand, when the continue mode is turned on, the end user can choose
either to continue printing or replace the toner cartridge with a new one.
User Check
• Install a new toner cartridge certainly.
Step Cause Remedy
1
New toner actuator catching on
some position
Correct catching of the new toner
actuator.
2
Harness connection failure of Panel
PCB
Reconnect the harness of the Panel PCB.
3 Panel PCB failure Replace the panel PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Power off or front cover opened
while detecting a new toner
cartridge.
Reset the developing bias voltage and
develop roller counter.
2 New toner actuator loose Re-assemble the new toner actuator
3 New toner sensor failure Replace the panel PCB ASSY.
User Check
• Prepare a new toner cartridge.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
User Check
• Replace the toner cartridge with a new one.
• Press the [Go] button seven times to clear the stop mode*, and shift to the continue
mode.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
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