Code :

Code: E302-0002
Description: Error in paper front black shading
Error in shading RAM access The shading value is out of the specified range.
Remedy: 1. Check that the LED of the Scanner Unit (Paper Front) is lit. 2. Check the connection between Scanner Unit (Paper Front) and LED, and check that the Cable is not opencircuit. 3. Check the condition of Shading White Plate of the Stream Read Glass (Paper Front) (scratches, dust, soil, etc.). 4. Check if Scanner Unit (Paper Front) detects HP correctly. (If it does not detect correctly, the Scanner Unit reaches to the end when DF is opened.) 5. Replace the Scanner Unit (Paper Front). 6. Replace the Reader Controller PCB.

Code: E302-0101
Description: Error in paper back white shading
Error in shading RAM access The shading value is out of the specified range.
Remedy: 1. Check that the LED of the Scanner Unit (Paper Back) is lit. 2. Check the connection between Scanner Unit (Paper Back) and LED, and check that the Cable is not opencircuit. 3. Check the connection between Reader Controller PCB and Scanner Unit PCB (Paper Back), and check that the Cable is not open-circuit. 4. Check the condition of Shading White Plate of the Scanner Glass (Paper Back) (scratches, dust, soil, etc.). 5. Check if Scanner Unit (Paper Back) detects HP correctly. 6. Replace the Scanner Unit (Paper Back). 7. Replace the Reader Controller PCB.

Code: E302-0102
Description: Error in paper back black shading
Error in shading RAM access The shading value is out of the specified range.
Remedy: 1. Check that the LED of the Scanner Unit (Paper Back) is lit. 2. Check the connection between Scanner Unit (Paper Back) and LED, and check that the Cable is not opencircuit. 3. Check the condition of Shading White Plate of the Scanner Glass (Paper Back) (scratches, dust, soil, etc.). 4. Check if Scanner Unit (Paper Back) detects HP correctly. 5. Replace the Scanner Unit (Paper Back). 6. Replace the Reader Controller PCB.

Code: E315-000E
Description: Image process device error
Software error of image process device was detected.
Remedy: 1. Disconnect and then connect the connector on the Main Controller PCB 2 (including SDRAM). 2. Replace the SDRAM. 3. Replace the HDD. 4. Replace the Main Controller PCB 2.

Code: E351-0000
Description: Main Controller PCB 2 communication error
Remedy: 1. Disconnect and then connect the connector of the Main Controller PCB 2. 2. Replace the Main Controller PCB 2.