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Of course, the stuff mentioned below is probably banned now.
(From: uiop@cyberramp.net).
When I worked servicing copiers for Canon, we took the roller out, the wiped it down with tri-chlor-ethane, which did a great job.
(From: Joseph Patrick (jpatrick@edge.net).)
The best way to clean a fuser is to use a very light coat of silicon oil. This is used on the heated fuser as well as the pressure roller.
The function of the fuser is to bind the ink to the paper through heat and pressure it should not accumulate any ink during normal use, it doesn't remove or collect toner normally, unless the surface is dirty or deteriorated. The teflon on the main fuser should be slightly shiny much like the surface on a Silverstone(tm) frying pan.
The item you were thinking of is the drum wiper blade which is a part of the drum assembly and is usually responsible for streaks / smudges that persist on the photo drum's surface and make permanent smudges on copies.
I learned of the silicon oil treatment from a 3M service rep. I was using alcohol in the copiers I serviced up to that time. He showed me the way to do it by wiping the fuser components with a non linty rag with a little oil on it until the rollers were completely clean then drying them with another cloth. The job naturally was done with the rollers fully dis-assembled but in his case could be done with minimum removal just so the rollers could be turned and reached without touching the drum assembly, the oil would kill it.