Hello YahooXM,
I found this article that may help you with your faded prints.
I am having issues when making copies on a C8070. Firmware is updated to the lastest. Toner & Drums are all newly swapped. Transfer Blade cleaner and Belt are cleaned. I only get this issue when making copies through the top doc feeder and when making copies on the planten. All prints are perfectly fine.
Attached is photo of what issue I am getting.