Xerox workcentre pro 428

Anyone knows where I can find the part that the catridge connects with in the copier and the tonner door switch for the Xerox Workcentre Pro 428?
many thanks

If there is no other way.You can execute 3-1 for NVM init. in the service model.

Maybe the cable connects the cartridge ship is the problem.You can check the PWB at the back of machine.

[bkiptumo]

I am having problems with the above machine. I replaced the tonner/drum catridge and it has brought up the error ode J8-1. I have tried to even use the chip from the previous catridge but it keeps bringing up the same error code. I have also tried a completely different catride and it still brings up the error code. what could be he problem? please help!
thanks in advance