Brother HL-2600CN Service Manual page 318

Error Code
Fixing Clutch(FUCL)
Concerned Part
Confirm the connection of a fixing clutch connector.
Is ECN9 of IOD2 properly connected with a connector of the clutch ?
Is ECN1 of IOD2 properly connected with 12CN of MCTL PWB 2?
Check the voltage (FUCLON-N/P)
Is a single voltage between ECN9-3 and ECN2-5 of IOD2 to be a trailing edge ?
Is a single voltage between ECN1-20 and ECN2-9 of IOD2 to be a rising edge ?
Is E8 error cleared ?
Job is complete.
E8
YES
NO
NO
YES
NO
Connect them properly.
Is E8 error cleared ?
NO
YES
Replace the fixing clutch(FUCL).
YES
Replace the IOD2 PWB 2.
NO
Replace the MCTL PWB 2.
IOD2
MCTL
ECN1 ECN9
12CN
20 FUCLON-P
20
ECN2
+24V-1
5
PGND
8
SGND
9
YES
Job is complete.
Fixing Clutch
+24V-1
1
FUCL
FUCLON-N
3