Match each common printer malfunction symptom to its most likely hardware or operational cause.
- Laser printer output smudges easily and toner rubs off the pageFuser assembly failure due to insufficient heat or pressure
- Laser printer output features continuous vertical black streaks down the pageScratched or damaged photosensitive drum unit
- Thermal printer feeds paper correctly but outputs completely blank pagesThermal paper roll installed backward or upside down
- Inkjet printer produces printouts with missing horizontal lines and uneven colorClogged or dried printhead nozzles
Answer
Each printing symptom corresponds to a distinct printer technology component: unbonded toner indicates fuser failure, vertical lines indicate drum damage, blank thermal output indicates reversed paper orientation, and missing lines on inkjet output indicate clogged printhead nozzles.
Smudged toner occurs when the fuser assembly fails to melt toner onto the paper. Vertical black streaks down a page indicate a damaged or scratched photosensitive drum. Blank pages on a thermal printer indicate thermal paper inserted upside down. Missing lines in inkjet prints stem from clogged printhead nozzles.
Step-by-Step Solution
Key Concept
Identifying root causes of common printer quality and hardware defects across laser, thermal, and inkjet technologies.