A user reports that a laser printer continues to print pages with text that is too light to read even after adding additional toner. Which of the following should the technician replace to correct thi

Using thinner paper stock would not directly cause light text output.

A contrast sensor is not a standard, user-replaceable component that directly causes light text if malfunctioning.

Pickup rollers are responsible for feeding paper and would cause paper jams or misfeeds, not light print.

The transfer drum, or imaging drum, is responsible for attracting toner and then transferring it to the paper. If the drum is worn out or defective, it cannot properly hold or transfer the toner, resulting in pages with text that is too light or faded, even with sufficient toner.