Description: ATR Sensor (C) error or toner supply error
The T/D ratio detected by the ATR Sensor (C) (UN41) is equal to or higher than the specified value (high density)
Remedy: 1. Check if the Drum Unit (C) is installed. 2. Check the Drum Unit Relay PCB (C) (UN28) 3. Check the Drum Unit Memory PCB (C) (UN32) 4. Check the harness/connector between the DC Controller PCB (UN09/ J25) and the Drum Unit Relay PCB (C) (UN28). 5. Replace the Drum Unit (C). 6. Replace the DC Controller PCB (UN09)
Code: E020-02B1
Description: ATR Sensor (C) error or toner supply error
Error in detected delta T/D ratio The T/D ratio detected by the ATR Sensor (C) (UN41) is equal to or lower than the specified value (light density)
Remedy: Overload of the motor or motor failure 1. Check conduction of FU9 on the DC Controller PCB (UN09). 2. Check the harness/connector between the DC Controller PCB (UN09/J24) and PS08. 3. Replace the DC Controller PCB (UN09) 4. Check the Hopper Unit (C). 5. Replace the Hopper Unit (C).
Code: E020-0320
Description: ATR Sensor (Bk) error or toner supply error
Error in detected TD ratio. The average of ATR reference value is the specified value or lower at the time of ATR Sensor (Bk) initialization.
Remedy: 1. Check if the Drum Unit (Bk) is installed. 2. Check the Drum Unit Relay PCB (Bk) (UN29) 3. Check the Drum Unit Memory PCB (Bk) (UN33) 4. Check the harness/connector between the DC Controller PCB (UN09/ J25) and the Drum Unit Relay PCB (Bk) (UN29). 5. Replace the Drum Unit (Bk). 6. Replace the DC Controller PCB (UN09)
Code: E020-0330
Description: ATR Sensor (Bk) error or toner supply error
Error in detected TD ratio. The average of ATR reference value is the specified value or higher at the time of ATR Sensor (Bk) initialization.
Remedy: 1. Check if the Drum Unit (Bk) is installed. 2. Check the Drum Unit Relay PCB (Bk) (UN29) 3. Check the Drum Unit Memory PCB (Bk) (UN33) 4. Check the harness/connector between the DC Controller PCB (UN09/ J25) and the Drum Unit Relay PCB (Bk) (UN29). 5. Replace the Drum Unit (Bk). 6. Replace the DC Controller PCB (UN09)
Code: E020-0340
Description: ATR Sensor (Bk) error or toner supply error
Unable to adjust the control voltage at the time of ATR Sensor (Bk) initialization.
Remedy: 1. Check if the Drum Unit (Bk) is installed. 2. Check the Drum Unit Relay PCB (Bk) (UN29) 3. Check the Drum Unit Memory PCB (Bk) (UN33) 4. Check the harness/connector between the DC Controller PCB (UN09/ J25) and the Drum Unit Relay PCB (Bk) (UN29). 5. Replace the Drum Unit (Bk). 6. Replace the DC Controller PCB (UN09)
Code: E020-0341
Description: ATR Sensor (Bk) error or toner supply error
Unable to adjust the control voltage at the time of ATR Sensor (Bk) initialization.
Remedy: 1. Check if the Drum Unit (Bk) is installed. 2. Check the Drum Unit Relay PCB (Bk) (UN29) 3. Check the Drum Unit Memory PCB (Bk) (UN33) 4. Check the harness/connector between the DC Controller PCB (UN09/ J25) and the Drum Unit Relay PCB (Bk) (UN29). 5. Replace the Drum Unit (Bk). 6. Replace the DC Controller PCB (UN09)