IR400

[chucklima]

When copies exit paper comes out crumpled, checked fuser unit looks good, it seems to me exit unit but I could not indentify what exactly.
Does anybody knows what could be?

[Copier_Guy]

When copies exit paper comes out crumpled, checked fuser unit looks good, it seems to me exit unit but I could not indentify what exactly.
Does anybody knows what could be?

Is the fixing cleaner roller in good shape? It is called the fixing heat sink in the documentation. It builds up with sticky toner and may need replacement.

[CanonHPTech]

Try replacing the following (3) Delivery Rollers after the Fixing Assembly:

External delivery roller FB4-2902-000
Internal delivery roller FB4-2901-000
Reverse roller FB4-2903-000

As you are doing this check all of the bushings/bearings at the ends of these Roller Shafts and the path as it exits through the Delivery Assembly.
Most of the time, if these Rollers have never been replaced or haven't been replaced in 300-500k copies, then replace them anyway. Good luck sir, please post your findings.