Description: IMC PWB DIMM memory read/write check error An installation error occurs in the IMC expansion compression memory module. An error occurs during access to the IMC expansion compression memory.
Remedy: Check installation of the expansion memory module. Replace the expansion memory module. Replace the IMC PWB with a new one.
Code: E1-81
Description: Interface error (Parity) in communication with the IMC PWB A parity error occurs in communication between the MCU PWB and the IMC PWB.
Causes: IMC PWB-MCU PWB harness defect Improper connection of the MCU PWB connector IMC PWB ROM defect/data abnormality"
Remedy: Check connection of the connector/harness between the IMC PWB and the MCU PWB. Check the ROM of the IMC PWB.
Code: E1-82
Description: Interface error (Overrun) in communication with the IMC PWB An overrun error occurs in communication between the MCU PWB and the IMC PWB.
Causes: IMC PWB-MCU PWB harness defect Improper connection of the MCU PWB connector IMC PWB ROM defect/data abnormality.
Remedy: Check connection of the connector/harness between the IMC PWB and the MCU PWB. Check the ROM of the IMC PWB.
Code: E1-84
Description: Interface error (Framing) in communication with the IMC PWB A framing error occurs in communication between the MCU PWB and the IMC PWB.
Causes: IMC PWB-MCU PWB harness defect Improper connection of the MCU PWB connector IMC PWB ROM defect/data abnormality.
Remedy: Check connection of the connector/harness between the IMC PWB and the MCU PWB. Check the ROM of the IMC PWB.
Code: E7-01
Description: Duplex model memory error The memory capacity for the duplex model machine is improper. Insufficient memory capacity
Causes: The memory capacity of the MCU PWB is improper.
Remedy: Use SIM 26-39 to check that the memory capacity is 32MB. If it is not 32MB, replace the MCU PWB with a suitable one.
Code: E7-02
Description: LSU trouble The BD signal from the LSU cannot be detected in a certain cycle. (Always OFF or always ON)
Causes: LSU connector or LSU harness defect or disconnection Polygon motor rotation abnormality Laser beams are not generated. MCU PWB abnormality.
Remedy: Check connection of the LSU connector. Execute SIM 61-03 to check the LSU operations. Check that the polygon motor rotates normally. Check that the laser emitting diode generates laser beams. Replace the LSU unit. Replace the MCU PWB.