Remedy: 1 Check the Fax setting. Is the Junk Fax Setup mode on? Go to step 2. Go to step 3. 2 Setting the receiving side Fax. Set the Speed Dial. Does the error still occur when receiving the Fax? Go to step 3. Complete. 3 Check the firmware version. Is the firmware the latest version? Go to step 4. Update the firmware, then go to step 4. 4 Replace the FAX Board. Does the error still occur when faxing? Replace the IP Board. Complete.
Remedy: 1 Check the resolution setting. Retry sending by lowering the resolution setting. Does the error still occur when faxing? Go to step 2. Complete. 2 Check the firmware version. Is the firmware the latest version? Go to step 3. Update the firmware, then go to step 3. 3 Replace the FAX Board. Does the error still occur when faxing? Replace the IP Board. Complete.
Remedy: 1 Check the sending side Fax. Receive the Fax data from known good Fax machine. Does the error still occur when faxing? Go to step 2. END, check the sending side Fax machine or retry sending by lowering the resolution setting. 2 Check the firmware version. Is the firmware the latest version? Go to step 3. Update the firmware, then go to step 3. 3 Replace the FAX Board. Does the error still occur when faxing? Replace the IP Board. Complete.
Remedy: 1 Check the printer setting. In the Admin menu, set Fax Settings… > Modem Speed to 2.4Kbps, and Fax Settings… > ECM to Off. Does the error still occur when faxing? Go to step 2. Complete. 2 Check the firmware version. Is the firmware the latest version? Go to step 3. Update the firmware, then go to step 3. 3 Replace the FAX Board. Does the error still occur when faxing? Replace the IP Board. Complete.
Remedy: 1 Check the sending side Fax. Receive the Fax data from known good Fax machine. Does the error still occur when faxing? Go to step 2. END, check the sending side Fax machine or sending data. 2 Check the firmware version. Is the firmware the latest version? Go to step 3. Update the firmware, then go to step 3. 3 Replace the FAX Board. Does the error still occur when faxing? Replace the IP Board. Complete.
Code: 034-791
Description: Check Line Connection
Causes: • FAX Board (MFP PL8.1.5)
Remedy: 1 Reconnect the telephone line connector. Does the error still occur when faxing? Replace the FAX Board. Complete.
Remedy: 1 Check the firmware version. Is the firmware the latest version? Go to step 2. Update the firmware, then go to step 2. 2 Replace the FAX Board. Does the error still occur when faxing? Replace the IP Board. Complete.
Remedy: 1 Does the error still occur after cycling the power On and Off several times? Go to step 2. Complete.a 2 Reseat the Imaging Unit and four Toner Cartridges. Does the error still occur when the power is turned Off and On? Go to step 3. Complete.a 3 Reseat the MCU Board. Does the error still occur when the power is turned Off and On? Go to step 4. Complete.a 4 Check the connectors for connection. Check the connections between the PWBA EEPROM and MCU Board. Are P/J 144, and P/J 42 connected surely? Go to step 6. Reconnect the connector(s) P/ J42 and P/ J144 securely, then go to step 5. 5 Does the error still occur when the power is turned Off and On? Go to step 6. Complete. 6 Check the PHD XPRO Harness Assy for continuity. Disconnect J42 from the MCU Board. Disconnect J144 from the EEPROM Board. Is each cable of J42 <=> J144 continuous? Go to step 7. Replace the PHD XPRO Harness Assy 7 Check the power to the EEPROM Board. Disconnect J42 from the MCU Board. Is the voltage across P42-3 <=> ground on the MCU Board, about +3.3 VDC? Replace the EEPROM Board Go to step 8. 8 Replace the MCU Board. Does the error still occur when the power is turned Off and On? Go to “Electrical Noise” on page 4-79. Complete.