• Code: C7-1311
• Display: Waste toner container is not installed. Install it.
• Description: The waste toner container is not installed
• Remedy: 1) Check if the waste toner container is installed properly. 2) Remove and reinstall the waste toner container.

• Code: C9-1112, C9-1116
• Display: Replace with new Tray1 pickup roller. End of life, Replace with new Tray1 retard roller.
• Description: The pick up roller or reverse roller is at the end of its life.
• Remedy: 1) Turn the machine off. 2) Replace the pick up roller Assy and reverse roller Assy.

• Code: M1-1110
• Display: Paper jam in tray 1.
• Description: The jammed paper has occurred in the tray1.
• Remedy: 1) Remove the jammed paper. 2) If the jammed paper occurs continually, check the followings. a) Check if the pick up/forward/reverse roller are worn out or contaminated. Clean the contaminated part or replace it. b) Check if the actuator is assembled correctly. 3) If the pick up clutch is defective, replace it.

• Code: M1-5112
• Display: Paper is empty in tray 1. Load paper.
• Description: Paper is empty in Tray1
• Remedy: 1) Take off the cassette. If there is no paper on the tray, load the paper. 2) If the problem persists, check the following. a) Check if the paper empty sensor is contaminated or defective. Replace it.

• Code: M2-1110, M2-1116
• Display: Paper jam inside of machine. Paper jam or empty in tray.
• Description: The jammed paper has occurred inside machine.
• Remedy: 1) Remove the jammed paper. 2) If the problem persists, check the following. a) Check if there is any obstacles or paper on the paper path. Remove it. b) Check if the FRAME-RETARD unit is assembled properly. c) Check if the pick up clutch, regi clutch, feed drive unit are working normally. If there is a defective part, replace it.

• Code: M3-1110
• Display: Paper jam in exit area.
• Description: The jammed paper has occurred in the exit area.
• Remedy: 1) Remove the jammed paper. 2) If the problem persists, check the following. a) Check if there is any obstacles or paper on the paper path. Remove it. b) Check if the fuser unit is assembled properly. If the fuser unit is defective, replace it. c) Check if the FRAME-EXIT unit has any defective parts. Replace the FRAME-EXIT.

• Code: M3-2130
• Display: Too much paper in output bin tray. Remove printed paper
• Description: The machine detected that the output tray has got full or the bin-full sensor is defective.
• Remedy: 1) Remove the paper on the output tray. 2) Check if the Bin-full Sensor connector is connected properly. Reconnect it. 3) If the sensor is defective, replace it.

• Code: S2-4120
• Display: Door is open. Close it.
• Description: Door is open or the cover open switch is defective.
• Remedy: 1) Check if the front cover is closed perfectly. 2) If the error persists, check that the cover-open sensor is working normally. If it is defective, replace it.