Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
If I may comment: many techs are online. But many are busy with many other cases. I can't swear to average response time.
I regret to state that I cannot offer Live Phone Call support myself, at this time.
I think the issue of whether the drum needs replacing also, depends upon whether the drum has gotten old, or been exposed to direct light for a period over 1 minute per 1/2 hour.
So how old is the drum, and has it been exposed to direct light for a while? either of those factors ages a drum surface, and an aged drum surface will indeed produce faded printouts. If the fading is gradual in extent, and overall slightly more faded toward the center of printed pages, then that's a typical sign of aging of a drum, and signifies the drum needs replacement almost beyond any doubt and in almost every case.