2-31
Confidential
Error code 3B00
An error occurred during access to the DRAM in the main PCB.
Error codes 3C00 to 4300
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.
Error code 4400
The toner sensor detected that the toner cartridge was not set.
Error codes 4500 to 4F00
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.
Print Unable 3B
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
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Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
No Toner
<User Check>
• Set the toner cartridge.
Step Cause Remedy
1
Toner sensor PCB failure Refer to "1.3.8 Check sensor operation
(function code: 32)" in Chapter 5 to check the
sensor operation. If the sensor operation is
faulty, replace the toner sensor PCB ASSY.
2 Relay front PCB failure Replace the relay front PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.
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Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.