Xerox 265 toning problem

Question

The charge assembly is in the Xerographic module or a separate part?There is a XEROX mod to fix this problem?!?!!?My repair lady is not too swift. How do I find out if my machine has this mod or what the mod # would be?Thanks
again, for your help! You are the first person I have talked to that
even remotely understands my problem and how to fix it.