• Code: A3–3212
• Display: Sensor Failure: #A3-3212. Turn off then on. Call for service if the problem persists
• Description: Inner temperature sensor is defective.
• Remedy: 1) Enter SVC mode. Execute sensor test to check its operation. (Diagnostics > Engine Diagnostics > Engine Test Routines) 2) Measure the resistance value of the connector at both ends. If the value is not in 47.5K - 52.5K (@ 25C), replace the inner temp sensor(1404-001417). 3) If the sensor is normal, replace the main board(JC92.02722A).

• Code: A3–3312, A3–3320
• Display: Sensor Failure: #A3-3312. Turn off then on. Call for service if the problem persists The room temperature is not suitable for this set use. Please adjust room temperature
• Description: Outer temperature/humidity sensor is defective.
• Remedy: 1) Enter SVC mode. Execute sensor test to check its operation. (Diagnostics > Engine Diagnostics > Engine Test Routines > Outer Temperature) 2) Measure the resistance value of the connector at both ends. If the value is not in 47.5K - 52.5K(@ 25C), replace the outer temperature/humidity sensor(JC32-00005A). 3) If the harness and sensor are normal, replace the main board(JC92.02722A).

• Code: A4-1110
• Display: Lamp Failure: #A4-1110. Open the door, then close it. Call for service if the problem persists
• Description: Erase Lamp does not turn on.
• Remedy: 1) Enter SVC mode. Execute the erase lamp test. (Diagnostics > Engine Diagnostics > Engine Test Routines > Erase Lamp) 2) If the erase lamp does not turn on, replace it(JC92-02373A).

• Code: C1–1110, C1–111A
• Display: Prepare new toner cartridge Shake toner cartridge and then install. Replace toner cartridge if the problem persists
• Description: Toner cartridge is almost empty.
• Remedy: 1) Open the front cover. 2) Remove the toner cartridge. 3) Shake the toner cartridge horizontally to distribute the toner evenly inside the cartridge. 4) Reinstall the toner cartridge. 5) Close the front cover. 6) Prepare new toner cartridge because it will be exhausted soon.

• Code: C1–1120, C1–1140
• Display: Replace with new toner cartridge. End of life, Replace with new toner cartridge.
• Description: Toner cartridge is at the end of its life.
• Remedy: 1) Open the front cover. 2) Remove the toner cartridge. 3) Install the new toner cartridge. 4) Close the front cover.

• Code: C1–1160, C1–1170
• Display: Replace with new toner cartridge. End of life, Replace with new toner cartridge.
• Description: Toner cartridge is at the end of its life.
• Remedy: 1) Open the front cover. 2) Remove the toner cartridge. 3) Install the new toner cartridge. 4) Close the front cover.

• Code: C1–1311, C1–1313, C1–1314
• Display: Toner Cartridge Failure: #C1-1311. Install toner cartridge again. Shake toner cartridge and then install.
• Description: The toner supply is abnormal.
• Remedy: 1) Turn the machine off then on. 2) Open the front cover. 3) Remove the toner cartridge. Thoroughly roll the cartridge three or four times to distribute the toner evenly inside the cartridge. And reinstall the toner cartridge. 4) Try to print out the sample page more than 20 pages. 5) Check the toner cartridge. • Check if the toner cartridge is installed correctly. • Check if the toner seal is removed perfectly. • Check if the toner supply shutter between the toner cartridge and the imaging unit works normally. 6) Replace the toner cartridge. Print out the sample page. 7) Check the toner supply motor operation. • Check the signal and power with the DVM. • If the checked result is normal, replace the DC motor(JC31-00078A) or the main drive unit(JC93–00923A).

• Code: C1–1411
• Display: Toner cartridge is not installed. Install the cartridge.
• Description: The toner cartridge is not installed properly.
• Remedy: 1) Open the front cover. 2) If the toner cartridge is not installed, install it. Try to test the machine again. 3) If the toner cartridge is installed, remove it. Check if the modular jack is contaminated or broken. 4) Clean the modular jack or replace the toner cartridge. 5) If it is OK, check the CN22 harness connection on the main board. 6) If the harness is defective, replace it. 7) Turn the machine off then on. Try to test the machine.