Oki OKIPAGE8c Maintenance Manual page 138

6
Fan Motor Error
• Is the Low-voltage power supply fan rotating after the page printer is powered on?
• No Is +32V being supplied on the FU2 of the engine board (PX4 PCB)?
• No Is +32V being supplied on the power connector of the engine board (PX4 PCB)?
32V: Pin 7, 8, 9, 10
No
• Yes Replace the engine board.
• Yes Is the resistance about 700 ohms of the low-voltage power supply fan about 700 ohms?
No Replace the fan of the low-voltage power supply.
• Yes Check the connection of the cable or replace the low-voltage power supply.
• Yes Is the Engine board fan rotating after the page printer is powered on again?
• No Is +32V being supplied on the FU2 of the engine board (PX4 PCB)?
• No 32V on the power connector of the engine board (PX4 PCB)?
32V: Pin 7, 8, 9, 10
No
• Yes Replace the engine board.
• Yes Is the resistance about 800 ohms of the engine board fan about 800 ohms?
No Replace the fan of the engine board.
• Yes Check the connection of the cable or replace the low-voltage power supply.
• Yes End
Check the connection of the cable or replace the low-voltage power supply.
Check the connection of the cable or replace the low-voltage power supply.
6 - 25