Disposable Fax Machine

They work great when they work. We have 6 in use at our company, but lately they are all dying. The replacement toner and drum assemblies they provide are so tight they strip out the plastic gears as they run, ruining the machine. One can't receive anymore because it generates a loud buzz on the line whenever it picks up. One shows "Machine Error" when its plugged in. I now have 4 Intellifax machines less than a year old sitting around the place as doorstops. Anyone know of a better manufacturer than Brother for Fax machines? I'll never recommend another Brother for fax machines