• Code: C1-2410
• Display: Install yellow toner cartridge.
• Description: The yellow toner cartridge is not installed.
• Remedy: 1) Open the front cover. Check if the yellow toner cartridge is installed. 2) Remove and reinstall the yellow toner cartridge. 3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed. 4) Replace the yellow toner cartridge with new one.

• Code: C1-2510, C1-2513
• Display: Yellow toner cartridge is not compatible. Check users guide. New yellow toner cartridge is not compatible. Check users guide
• Description: Yellow toner cartridge is not compatible.
• Remedy: 1) Replace the yellow toner cartridge with a new one.

• Code: C1-2711, C1-2712
• Display: Toner Cartridge Failure: #. Call for service
• Description: The data of CRUM is not detected.
• Remedy: 1) Open the front cover. Check if the yellow toner cartridge is installed. 2) Remove and reinstall the yellow toner cartridge. 3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed. 4) Replace the yellow toner cartridge with new one.

• Code: C1-3110
• Display: Prepare new magenta toner cartridge.
• Description: Magenta toner is almost empty.
• Remedy: 1) Order new magenta toner cartridge because toner cartridge with level of “Low” will be exhausted soon.

• Code: C1-3120, C1-3124, C1-3140
• Display: Replace with new magenta toner cartridge.
• Description: The magenta toner cartridge is at the end of its life.
• Remedy: 1) Open the front cover. 2) Remove the magenta toner cartridge. 3) Install the new magenta toner cartridge. 4) Close the front cover.

• Code: C1-3410
• Display: Install magenta toner cartridge.
• Description: The magenta toner cartridge is not installed.
• Remedy: 1) Open the front cover. Check if the magenta toner cartridge is installed. 2) Remove and reinstall the magenta toner cartridge. 3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed. 4) Replace the magenta toner cartridge with new one.

• Code: C1-3510, C1-3513
• Display: Magenta toner cartridge is not compatible. Check users guide. New magenta toner cartridge is not compatible. Check users guide
• Description: Magenta toner cartridge is not compatible.
• Remedy: 1) Replace the magenta toner cartridge with a new one.

• Code: C1-3711, C1-3712
• Display: Toner Cartridge Failure: #. Call for service
• Description: The data of CRUM is not detected.
• Remedy: 1) Open the front cover. Check if the magenta toner cartridge is installed. 2) Remove and reinstall the magenta toner cartridge. 3) If the problem persists, check if the toner cartridge modular jack is contaminated or deformed. 4) Replace the magenta toner cartridge with new one.