Causes: After lift-up of the Lifting Plate of the 1-Cassette Unit started, ON status of the Lifter Sensor of the 1-Cassette Unit was not detected within the specified period of time.
Remedy: 1. While the cassette of the 1-Cassette Unit is removed, turn ON the power and insert the cassette, then check the operation sound of the motor. When there is operation sound of the motor, check if the Lifting Plate has been lifted up. When the Lifting Plate has been lifted up: 1-1. Check that the Lifter Sensor of the Cassette Unit is properly installed. 1-2. Check the harness/connector between the Engine Controller PCB and the Lifter Sensor. 1-3. Replace the Lifter Sensor. 1-4. Replace the Cassette Feeder Driver PCB. 1-5. Replace the Engine Controller PCB. When the Lifting Plate has not been lifted up: 2-1. Check the condition of the gear of the Cassette Unit (missing teeth, swing). 2-2. Check the harness/connector between the Engine Controller PCB and the Lifter Solenoid of the Cassette Unit. 2-3. Replace the Lifter Solenoid. 2-4. Replace the Pickup Motor of the Cassette Unit. 2-5. Replace the Cassette Feeder Driver PCB. 2-6. Replace the Engine Controller PCB. When there is no operation sound of the motor, check the followings: 3-1. Check the harness/connector between the Engine Controller PCB and the Pickup Motor of the Cassette Unit. 3-2. Check the condition of the gear at the Cassette Unit side (missing teeth, swing). 3-3. Replace the Pickup Motor. 3-4. Replace the Cassette Feeder Driver PCB. 3-5. Replace the Engine Controller PCB.
Code: E020-0000
Description: Density Sensor error
Causes: An error in the Density Sensor was detected.
Remedy: 1. Check the remaining toner level. 2. Replace the Toner Cartridge. 3. Check the harness/connector between the Color Displacement/Density Sensor and the Engine Controller PCB. 4. Replace the Color Displacement/Density Sensor. 5. Replace the ITB. 6. Replace the Engine Controller PCB.
Code: E021-1000
Description: Yellow Developing Motor rotation error
Causes: It was judged that the Developing Motor did not rotate.
Remedy: 1. Check the harness/connector between the Developing Motor and the Engine Controller PCB. 2. Replace the Developing Motor. 3. Replace the Driver PCB. 4. Replace the Engine Controller PCB.
Code: E021-1001
Description: Magenta Developing Motor rotation error
Causes: It was judged that the Developing Motor did not rotate.
Remedy: 1. Check the harness/connector between the Developing Motor and the Engine Controller PCB. 2. Replace the Developing Motor. 3. Replace the Driver PCB. 4. Replace the Engine Controller PCB.
Code: E021-1002
Description: Cyan Developing Motor rotation error
Causes: It was judged that the Developing Motor did not rotate.
Remedy: 1. Check the harness/connector between the Developing Motor and the Engine Controller PCB. 2. Replace the Developing Motor. 3. Replace the Driver PCB. 4. Replace the Engine Controller PCB.
Code: E021-1003
Description: Black Developing Motor rotation error
Causes: It was judged that the Developing Motor did not rotate.
Remedy: 1. Check the harness/connector between the Developing Motor and the Engine Controller PCB. 2. Replace the Developing Motor. 3. Replace the Driver PCB. 4. Replace the Engine Controller PCB.