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Confidential
Error code 6D00
Detected more LTs than connectible limit.
Error code 6F00
Detected irregular power supply for less than 100 times.
Error code 7000
The eject sensor does not detect paper pass after the registration rear sensor detected the
paper pass.
<User Check>
• Reduce LTs to acceptable numbers.
• Reconnect LTs.
Step Cause Remedy
1
Dust around the LT/TT
connector
Clean the LT/TT connector.
2
Malfunction of the LT control
PCB
Install the latest main firmware.
3
Machine or LT/TT connector
failure
Replace the machine or LT/TT connector.
4 LT control PCB failure Replace a LT control PCB ASSY.
5 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Turn the power switch OFF and then back ON again.
• Use a noise filter on the power supply.
• Install a voltage stabilizer to the power supply unit.
<User Check>
• Remove the jammed paper.
• Replace the drum unit with a new one.
Step Cause Remedy
1
Foreign object inside the
machine
Remove the foreign object.
2
Connection failure of the eject
sensor harness
Reconnect the eject sensor harness.
3
Eject actuator coming off or
caught in some sections of the
machine
Reattach the eject actuator.
4 Fuser cover attachment failure Reattach the fuser cover.
5 Eject sensor failure Replace the eject sensor PCB ASSY.
6
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
7 Fuser unit failure Replace the fuser unit.
8
Damaged fuser gears or drum
gears
Replace the main frame L ASSY.
9 Main PCB failure Replace the main PCB ASSY.
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