Fixing time for fiber and RC (resin-coated) papers are essentially similar, since the emulsion to be fixed is merely sitting on the top of the paper in both cases. However, extending fixing time with fiber prints allows more fixer to soak into the base of the paper. It is good practice to minimize the fixing time with fiber prints. Fiber prints also have an extended washing time compared to RC prints.
Permanent link to this article: http://sprintsystems.com/q-do-i-fix-fiber-prints-and-resin-coated-prints-differently/