km 3035 showing black and ghost copy

[quitech]

Dear friends,

Greeting to you all, i am experiencing another problem for km 3035 only, the problem is black and ghost copy, corona unit ok,high voltage unit ok, until i change the main pwb, it will start working normal. My question is, what is affecting the main pwb for this particular machine i have almost 9 of it that is having the same problem ,is there any thing i can do the main pwb for it to work ?

Your advice will be highly appreciate.
Best Regards
quitech.

[copylogic]

Re: km 3035 showing black and ghost copy

Hi can you attach copies, most of the ghosting issues I saw on these machines was caused by the fan located next to the Bypass / mp tray being blocked with dust.