dc 242 random cyan dots

[Guest]

Hi friends! I have this machine with this cyan random dots quite a lot time.I have allready replace 1)drums 2)dev assys 3)dev materials 4)belt 5)belt clean.assy 6)all the rolls inside the ibt unit, nothing happened.Finally suspected the direct pipe assy and i change that to (hard work).Temporarily the problem seemed fixed.However after 10000 passes i had a call back.When i checked the pipe assy i found a gear broken .I change that again but the problem not solved .Do you think that i have problem with hvps?or air system?Any other ideas

thanks in advance

[adeyemi]

Change the cyan toner...simple! And don't replace with toner from same source.