Code :

Code: F7-21
Description: Combination error between TEL/LIU and FAX soft switch (2nd line)
Causes: Incompatibility between the TEL/LIU PWB and the FAX control PWB information (soft switch)
Remedy: Case 1 Cause The destination of the TEL/LIU PWB installed is improper. Check and Remedy Check the destination of the TEL/LIU PWB. Case 2 Cause TEL/LIU PWB trouble. Check and Remedy Replace the TEL/LIU PWB.

Code: F7-30
Description: FAX microprocessor access error(2nd line)
Causes: FAX 1-chip microprocessor access error (Read and write)
Remedy: Case 1 Cause Program writing trouble to the 1-chip microprocessor, or no program data written. Check and Remedy Use SIM66-42 to rewrite the 1-chip microprocessor program. Case 2 Cause FAX 1-chip microprocessor circuit trouble. Check and Remedy Replace the FAX control PWB.

Code: F7-98
Description: Incompatible destination between FAX control and main machine(2nd line)
Causes: Incompatibility between the destination information written into the FAX control PWB EEPROM and that in the main machine (set with SIM26-6)
Remedy: 1) Check the destination of the FAX control PWB. 2) Check the destination of the machine. (SIM26-6)

Code: F8-00
Description: Communication trouble between MFP and FAX 3rd line
Causes: MFP - FAX communication establishment error / Framing / Parity / Protocol error
Remedy: Case 1 Cause FAX control PWB trouble. Check and Remedy Replace the FAX control PWB. Case 2 Cause FAX control PWB - MFPC PWB connector and harness trouble Check and Remedy Check the connector and the harness between the FAX control PWB and the MFPC PWB. Case 3 Cause FAX control PWB - Mother board connector and harness trouble Check and Remedy Check the connector and the harness between the FAX control PWB and the mother board. Case 4 Cause FAX control PWB ROM trouble / ROM pin breakage Check and Remedy Check the ROM of the FAX control PWB.

Code: F8-01
Description: FAX EEPROM read/write error(3rd line)
Causes: FAX control PWB EEPROM access error (Read and write)
Remedy: Case 1 Cause FAX control PWB EEPROM trouble Check and Remedy Check that no trouble occurs after replacement of EEPROM. Execute the memory check of SIM66-3 to insure that EEPROM can be accessed. Case 2 Cause FAX control PWB EEPROM access circuit trouble Check and Remedy Replace the FAX control PWB.

Code: F8-04
Description: FAX modem operation trouble(3rd line)
Causes: FAX control PWB MODEM chip operation trouble
Remedy: Case 1 Cause FAX MODEM chip operation trouble. Check and remedy Replace the FAX control PWB. Case 2 Cause The FAX MODEM chip cannot be accessed. Check and Remedy Replace the FAX control PWB.

Code: F8-21
Description: Combination error between TEL/LIU and FAX soft switch (3rd line)
Causes: Incompatibility between the TEL/LIU PWB and the FAX control PWB information (soft switch)
Remedy: Case 1 Cause The destination of the TEL/LIU PWB installed is improper. Check and Remedy Check the destination of the TEL/LIU PWB. Case 2 Cause TEL/LIU PWB trouble. Check and Remedy Replace the TEL/LIU PWB.