Very slight crease in 4015

[captstent]

Have a 4015DN printer that has started to put a very slight creases, down the paper. I checked the insides and didn't see any debris that might be causing a problem. I checked the fuser and it still looks to be in good shape. The maintenance kit has 55% left. There have been no complaints of jams.

It might not matter but our Advancement department uses it to print letter head paper.

[captstent]

By the way it's 20 years old.

[Repairatrooper · Accepted solution]

Is this a straight line crease or a wandering crookedly down the page crease? If no other visible problems, likely the fuser starting to fail. PM kit % are based on printing 10 page minimum jobs. If always printing single page jobs life and be up to 60% less than rating. Also make sure you have the firmware current as older versions of firmware can lead to premature fuser failure.

[captstent]

two straight lines going down the long way.

[Repairatrooper]

Ok if they are perfect straight lines then likely you have dragging of some roller assembly. Can you post a sample with the measurement of how far apart the marks are from each other and the edge of the page?