IBT BUR Housing Assembly (Back Up Roll) (OEM 948K11491) Xerox® V180 / V280, V3100 / V4100

For Xerox® models: (Versant®) V180 / V280, V3100 / V4100

Back Up Housing Assembly, with Backup & Contact Rolls - 948K11491 Genuine Xerox Brand®

***Also fits V80/V2100 With Tag 21 ONLY***

This assembly includes an important black plastic frame piece found near the bottom of the rear of the IBT module. This black plastic frame piece has two holes into which the 2nd BTR indexing pins seat, to hold the two modules in the proper relationship to one another.  Sometimes if the big drawer with the 2nd BTR assembly gets slammed closed too hard, this black plastic part gets damaged.  

Note that the BUR Coupling (they call it a drive nose in the parts book) is part of this larger assembly.  The BUR Nose/coupling was introduced with Tag 14 on the earliest models (V80/V2100) and is present in all the models that follow including the V80/V2100 that are "With Tag 14".