: My scanner is only scanning half of a page and the rest of the page is coming up black. What would cause this problem?
Answer : This could be a number of different reasons, and it is usually very hard to narrow what is causing this without an authorized technician to determine the cause. Possibilities include a problem with the lamp itself, the inverter, the board that controls the lamp, the sensor that detects the page length, and a variety of other reasons. Most likely, it is the lamp, but it is impossible to be sure without the help of an authorized technician observing the issue.