Description: The developer unit is not installed or not installed properly
Failed to detect the voltage to identify the developer.
Causes: The developer unit is not installed. The developer connector is not properly inserted in the printer. Defective developer unit. Defective engine board (KP-1081).
Code: 7410
Description: The drum unit is not installed or not installed properly
EEPROM communication error or the drum ID was not identified.
Causes: The drum unit is not installed. The drum unit connector is not properly inserted in the printer. Defective drum unit. Defective engine board (KP-1081)
Code: 8000
Description: Non-supported device is installed as an optional exit
Serial communication detected that a non-supported bulk paper stacker HS-8E has been installed.
Causes: A non-supported bulk paper stacker HS-8E is installed.
Code: F0
Description: Main board or LCD controller board error
Communication is failed between the LCD controller board (KP-1079) and the main board.has
Causes: Defective system DIMM [board KP- 1059*1/893*2*3]. Defective main board (KP-1053/ 1033).
Code: F010
Description: System DIMM [board] error
Checksum failed with system DIMM [board KP-1059/893] on the main board.
Causes: LCD controller board (KP-1079). Defective system DIMM [board KP- 1059*1/893*2*3]. Improper system DIMM [board KP- 1059*1/893*2*3] insertion to system DIMM slot on the main board (KP-1053/ 1033
Code: F020
Description: Main or expanded memory error
Checksum failed with main memory (RAM) on the main board or expanded memory (DIMM).
Causes: Defective system main memory (RAM) on the main board (KP- 1059*1/893*2*3). Defective main board (KP-1053/ 1033). Defective expanding memory (DIMM) on the main board (KP- 1053/1033)