Thank you for using the Support Forum. You can inspect it or replace it but not clean it. Please take a look at the solution for inspecting the transfer unit. If replacing the transfer unit does not help then please consider contacting your support centre for further assistance.
Thanks, CherylO-Xerox Community Manager
Be sure to click Kudos for those who have helped you. Select Accept as Solution for posts that have helped to solve your issue(s)!