1) The ir400 copier laser scanner has a number of fans that generate the signal. The
fan number 5 is the curl reducing fan.
2) If any error occurs from that fan, then you will see the 004-error code. The error occurs
when the fan wiring is faulty.
3) The fan can be faulty or even the DC controller PCB can also
damage. There can be any foreign objects objecting the fan's rotation pathway.
4) If you find any object,
then remove the object. Check if the wiring and the
connector of the fan are normal.
5)
Replace the fan if there is a problem with it. Also, replace the DC controller. Check if the
fan FM5 is positioned correctly.
6) The Heat Exhaust Fan FM5 error can also occur. C
heck if the connector connection between the Heat Exhaust Fan and the DC controller is intact.
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