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Confidential
■ Error code 4B01
Dot counter of the toner cartridge (black) or develop roller counter reaches the upper limit
soon.
Error code 4B02
Dot counter of the toner cartridge (yellow) or develop roller counter reaches the upper limit
soon.
Error code 4B03
Dot counter of the toner cartridge (magenta) or develop roller counter reaches the upper limit
soon.
Error code 4B04
Dot counter of the toner cartridge (cyan) or develop roller counter reaches the upper limit
soon.
<User Check>
• Prepare a new toner cartridge.
■ Error code 4C01
Dot counter of the toner cartridge (black) or develop roller counter has reached the upper limit
was detected.
Error code 4C02
Dot counter of the toner cartridge (yellow) or develop roller counter has reached the upper limit
was detected.
Error code 4C03
Dot counter of the toner cartridge (magenta) or develop roller counter has reached the upper
limit was detected.
Error code 4C04
Dot counter of the toner cartridge (cyan) or develop roller counter has reached the upper limit
was detected.
Error code 4C05
During printing, dot counter of color toner cartridge or develop roller counter has reached the
upper limit was detected.
<User Check>
• Replace the toner cartridge whose counter reached the upper limit.
Step Cause Remedy
1 Main PCB failure Replace the main PCB.
Step Cause Remedy
1
Replace the toner cartridge with
a new one and reset the toner
counter. If the error display is not
cleared, the main PCB is faulty.
Replace the main PCB.
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