Print quality problems are one of the more common calls we get, and the cause is usually narrower than people expect.
Low or unevenly distributed ink/toner
The most common cause by far — check ink/toner levels before assuming a mechanical fault.
Clogged print head (inkjet printers)
Run the built-in head-cleaning function first; if that doesn't work, a manual clean is usually needed.
Worn drum or fuser unit (laser printers)
Streaks or repeating marks at regular intervals often point to a worn drum unit rather than a toner issue.
Using the wrong paper type or setting
Printing on the wrong setting can look like a hardware fault when it's actually a settings mismatch.
If a cartridge swap or cleaning cycle doesn't fix it
That's usually the point where a proper diagnosis is worth it — we can identify the exact component at fault.