I want to use Konica brand supplies in a Muratec MFX-C2880. A compatible cartridge is made to fit in either, but I'm pretty sure a Konica TN-321 will not fit in the Muratec. Does anyone know a way to do this? Can plastic keys be cut off easily, or something like that? Or can the entire end of the cartridge be replaced with the compatible end, and the chip also? And how about using Konica Drum Units and Developer Units in the Muratec? Thanks very much!