• Code: F24X
• Description: Abnormality detecting in the system Management Department
• Remedy: (1) Check contact of a DDR memory and perform an operation check. (2) Carry out U021 Main backup initialization and perform an operation check. (3) Exchange a Main/Engine PWB and perform an operation check. (4) Get USBLOG and contact service headquarters.

• Code: F25X
• Description: Abnormality detecting in a network management department
• Remedy: (1) Carry out U021 Main backup initialization and perform an operation check. (2) Exchange a Main/Engine PWB and perform an operation check. (3) Get USBLOG and packet capture and contact service headquarters.

• Code: F26X ... F2AX
• Description: Abnormality detecting in the system Management Department
• Remedy: (1) Carry out U021 Main backup initialization and perform an operation check. (2) Exchange a Main/Engine PWB and perform an operation check. (3) Get USBLOG and contact service headquarters.

• Code: F2BX ... F32X
• Description: Abnormality detecting in a network control part
• Remedy: (1) Carry out U021 Main backup initialization and perform an operation check. (2) Exchange a Main/Engine PWB and perform an operation check. (3) Get USBLOG and contact service headquarters.(Depending on an analysis result, it is packet capture acquisition)

• Code: F33X
• Description: Abnormality detecting in the Scan Management Department
• Remedy: (1) Check the harness between Scan/DP<=>Main/Engine PWBs, and the connection state of a connector, and perform an operation check. (2) U021 Controller backup initialization is carried out and an operation check is performed. (3) Exchange a Scan/DP board and perform an operation check. (4) Exchange a Main/Engine PWB and perform an operation check. (5) Get USBLOG and contact service headquarters.

• Code: F34X
• Description: Abnormality detecting in the Panel Management Department
• Remedy: (1) Check the harness between Panel<=>Main/Engine PWBs, and the connection state of a connector, and perform an operation check. * Notes (2) U021 Controller backup initialization is carried out and an operation check is performed. (3) Exchange a Panel board and perform an operation check. (4) Exchange a Main/Engine PWB and perform an operation check. (5) Get USBLOG and contact service headquarters.

• Code: F35X
• Description: Abnormality detecting in the printing controlling Management Department
• Remedy: (1) Carry out U021 Main backup initialization and perform an operation check. (2) Exchange a Main/Engine PWB and perform an operation check. (3) Get USBLOG and contact service headquarters.

• Code: F37X
• Description: Abnormality detecting in the FAX Management Department
• Remedy: (1) Carry out U021 Main backup initialization and perform an operation check. (2) Exchange a Main/Engine PWB and perform an operation check. (3) Get USBLOG and contact service headquarters.