User Activity

I've installed a number of MF634Cdw for my clients.  Almost all have been trouble-free.  In one case, though, this small office has trouble from all the (Win7) workstations.  The printer is on the network.  Drivers are installed per-computer with def...
A client bought some off-brand toner cartridges on Amazon.  Magenta has leaked.  Cyan and yellow seem to be OK so far.  Printed pages are seriously clouded with magenta. Rubber roller at back of unit has magenta on it. I don't see any on the transfer...