2-66
Confidential
■ Error code 6A00
Electric discharge that may be caused by dirt on the corona wire of the drum unit was
detected.
Error code 6B01
Electric discharge was detected when the number of the black drum unit rotations had become
more than twice of the upper limit.
Error code 6B02
Electric discharge was detected when the number of the yellow drum unit rotations had
become more than twice of the upper limit.
Error code 6B03
Electric discharge was detected when the number of the magenta drum unit rotations had
become more than twice of the upper limit.
Error code 6B04
Electric discharge was detected when the number of the cyan drum unit rotations had become
more than twice of the upper limit.
<User Check>
• Slide the green tab of each drum unit to left and right for two to three times to clean the
corona wire.
• Clean the electrode of each drum unit. (Refer to Fig. 2-7 (P2-63).)
• Replace each drum unit.
■ Error code 6E00
The develop release sensor detected the develop roller disengagement or engagement
failure.
Step Cause Remedy
1
Dirt on the GRID terminals of the
machine
Clean the GRID terminals of the machine.
(Refer to Fig. 2-6 (P2-63).)
2
Dirt on the high-voltage power
supply PCB terminal
Clean the high-voltage power supply PCB
terminal.
3
High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB.
4 Main PCB failure Replace the main PCB.
Step Cause Remedy
1
Develop release clutch
attachment failure
Refer to “P3-63 Assembling Note” to
assemble the develop release clutch.
2
Connection failure of the develop
release sensor harness
Reconnect the develop release sensor
harness.
3 Develop release sensor failure Replace the develop release sensor PCB.
4 Develop release clutch failure Replace the process drive unit.
5 Main PCB failure Replace the main PCB.
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