The scanner unit shoots a laser been onto the drum surface to create a charge so the toner will adhere to it. It is one on the main parts of a laser printer and is very costly to replace. A new scanner unit can cost as much as a new printer. Our good used scanner units are a friction of the price of a new one, allowing you to keep your printer. All have been tested. They have the same warranty as a new scanner, 90 days.
Scanner units are sealed and should never be opened. We recommended a certified Kyocera technician install this part. Free UPS Ground shipping on all scanner units.