Konica Minolta bizhub C658 Service Manual page 1537

bizhub C658/C558/C458/C368/C308/C258
5. Troubleshooting when NG is displayed on the Self-diag. (Individual)
5.1 Various USB Check
5.1.1 Troubleshooting when NG is displayed for Keyboard
1. Turn OFF the main power switch, disconnect power cord from the outlet.
2. Correct the mounting of the keyboard if faulty.
3. Correct the mounting of the USB board if faulty.
4. Replace the keyboard.
5. Replace the USB board.
5.1.2 Troubleshooting when NG is displayed for USB Memory
1. Turn OFF the main power switch, disconnect power cord from the outlet.
2. Correct the mounting of the USB memory if faulty.
3. Correct the mounting of the USB board if faulty.
4. Replace the USB memory.
5. Replace the USB board.
5.2 MFP Board Check
5.2.1 Troubleshooting when NG is displayed for Ping Test
1. Turn OFF the main power switch, disconnect power cord from the outlet.
2. Check, and correct the MFP network settings if faulty.
3. Correct the mounting of the LAN cable if faulty.
4. Correct the mounting of the MFP board if faulty.
5. Replace the LAN cable.
6. Replace the MFP board.
K TROUBLESHOOTING > 5. Troubleshooting when NG is displayed on the Self-diag.
K-209
(Individual)