Description: ATR patch failed to be created correctly or Patch Sensor error
High density for the target at patch detection
Remedy: 1. Check the patch shape. 2. Clean the high voltage contact point with dry wiping or air blower. 3. Check the harness/connector between the DC Controller (UN09) and the High Voltage PCB. Between the DC Controller PCB (UN09/ J21) and the Primary Charging High Voltage PCB (UN06/ J441, J442) Between the DC Controller PCB (UN09/ J21, J22) and the Developing High Voltage PCB (UN07/ J451, J452) Between the DC Controller PCB (UN09/ J19) and the Auxiliary High Voltage PCB (UN08/J461, J462) Between the DC Controller PCB (J205) and the Primary Transfer High Voltage PCB (UN04/J1001) 4. Replace the Drum Unit (Bk) 5. Replace the Registration Patch Sensor Unit 6. Replace the ITB Unit. 7. Check conduction of the fuses (FU5, FU8) in the DC Controller PCB (UN09). 8. Replace the Primary Transfer High Voltage PCB (UN04) 9. Replace the Developing High Voltage PCB (UN07) 10. Replace the Primary Charging High Voltage PCB (UN06) 11. Replace the Auxiliary High Voltage PCB (UN08) 12. Replace the DC Controller PCB (UN09)