- All one colour
- Colour misregistration
- Coloured lines across the page
- Coloured spots at 94 mm (3.7 in.) intervals or at 30 mm (1.2 in.) intervals
- Coloured streaks or bands down the page
- Completely blank or some colours are missing.
- Offset image
- Poor fixing
- The paper comes out of the machine curled or wavy.
- The printed page is wrinkled when it come out of the machine.
- Toner scatter or toner stain
- Uneven density appears periodically across the page.
- White lines, bands or ribbing across the page
- White spots or hollow print
- White streaks or bands down the page