This video shows how easy it is for each of you to clean the paper pick rollers on your Samsung 3400/ 3405/ 2160/ 2070/ Xerox 3020/ 3025, and if necessary, remove and replace them. My videos are for those who want to refill the cartridge themselves or repair the printer, MFP, copier, etc. There are videos with various faults. If you have any questions about a specific model - please contact, I will try to help. E-Mail - [email protected].