Code :

Code: 18
Display: JAM 0
Description: 1. Paper is not exited from the cassette. 2. Jam-0 occurs if the paper feeds into the printer.
Causes: 1. Check the Solenoid by using DCU diagnostic mode 06. 2. Check if the pad is loose due to bad sealing of the side-pad. 3. Check the surface of the roller-pickup for foreign matter. 4. If continuous clusters occur, check whether the assembly slot between shaft-pickup and housing-pickup become open or is broken away. 5. If the paper feeds into the printer rand Jam 0 occurs, perform DCU to check feed-sensor of the engine board.

Code: 19
Display: JAM 1
Description: 1. Recording paper is jammed in front of or inside the fuser. 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.
Causes: 1. If the recording paper is jammed in front of or inside the fuser. (Perform DCU diagnostic code of) 2. If the recording paper is stuck in the discharge roller and the fuser just after passing through the Actuator- Feed, Feed Actuator may be defective.

Code: 20
Display: JAM 2
Description: 1. Recording paper is jammed in front of or inside the fuser. 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.
Causes: 1. If the paper is completely fed out of the printer, but Jam 2 occurs : Exit sensor is defective. • After the paper is completely discharged, actuator Exit should return to the original position to shut the photo-sensor. Sometimes it takes longer hour than it should and does not return. 2. If the paper is rolled in the Fuser Roller: • This occurs when a Guide claw is broken away or transformed. • It occurs when the Spring of a Guide claw is broken away or transformed. • It occurs when the Heat-Roller or Pressure-Roller is seriously contaminated with the toner. 3. Paper is accordion in the fuser.

Code: 21
Display: Multi-Feeding
Description: Multiple sheets of paper are fed at once.
Causes: 1. Solenoid malfunction(the solenoid does not work properly): Perform DCU mode : solenoid check 06. 2. Pad-Friction is contaminated with foreign matter.(oil...) 3. The face of paper is blended.

Code: 24
Display: All LEDs blinking (Fuser Error)
Description: 1. All the lamps on the operator panel blink. 2. Gear of the fuser does not work and breaks away melt away. When printing, motor breaks away from its place due to defective fuser gear.
Causes: 1. Check if the thermostat, AC wire and Heat Lamp is open. 2. Check if the thermistor sensor is in place. 3. Check if the heat lamp works properly. 4. Check if the overheat circuit works properly. 5. The fuser gear is defective due to melting away.

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