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Confidential
îš„ Error codes 7B00 and 7C00
These errors do not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
An unidentified error occurred.
îš„ Error code 7D00
Detected discharge that may be attributable to dirty corona wire on the drum unit.
îš„ Error codes 7E00 and 7F00
These errors do not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
An unidentified error occurred.
îš„ Error code 8000
The registration front sensor detected that the paper length was too short when faxing or
printing a list or report.
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Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Drum Error
Open the Front Cover and slide the green tab across the Drum Unit several times.
<User Check>
• Slide the green tag of the drum unit left and right two to three times to clean the corona
wire.
• Replace the drum unit with a new one.
Step Cause Remedy
1
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
2 Main PCB failure Replace the main PCB ASSY.
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Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Size mismatch
Reload correct paper.
<User Check>
• Set paper larger than letter size in the tray.
Step Cause Remedy
1
Registration front sensor failure Replace the registration front/rear sensor PCB
ASSY.
2 Main PCB failure Replace the main PCB ASSY.
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