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Confidential
■ Error code 2500
Black toner cartridge could not communicate with the cartridge sensor.
Error code 2501
Yellow toner cartridge could not communicate with the cartridge sensor.
Error code 2502
Cyan toner cartridge could not communicate with the cartridge sensor.
Error code 2503
Magenta toner cartridge could not communicate with the cartridge sensor.
<User Check>
• Reinstall the toner cartridge.
• Use the genuine toner cartridge.
• Replace the toner cartridge with a new one.
■ Error code 2E00
Could not communicate with the cartridge sensor on the machine side.
Error code 2E02
Cartridge sensor on the machine side does not work.
Error code 2E04
Cartridge sensor version on the machine side is not available.
■ Error code 3801
A temperature error occurred in the external temperature/humidity sensor.
Step Cause Remedy
1 Dirt on a cartridge sensor Clean a cartridge sensor terminal.
2
Connection failure of a cartridge
sensor harness
Reconnect a cartridge sensor harness.
3
Connection failure of the
cartridge sensor relay flat cable
Reconnect the cartridge sensor relay flat
cable.
4 Main PCB failure Replace the main PCB.
Step Cause Remedy
1 Main PCB failure Replace the main PCB.
Step Cause Remedy
1
Connection failure of the external
temperature/humidity sensor
harness
Reconnect the external temperature/
humidity sensor harness.
2 Main PCB failure Replace the main PCB.
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