● the printheads
● media advance
Problems with the printheads
Banding caused by problems with the printheads will be apparent in the
Image Quality Print because the banding does not appear in all colors. In this
case, the colored strip that has banding was caused by the printhead of the
same color. The colored stripes are in the same order as they appear on the
printer as if you are facing it; that is, from light cyan on the left to black on
the right.
For example, the Image Quality Print shown below was printed with a printer
that has a cyan printhead problem.
corrective action
1. Perform
printhead recovery if you have not already done so.
2. If there is no improvement in print quality, replace the printhead that
causes the problem.
problems with media advance
If the printer has media advance problems you will see banding in all the
colors.
For example, the Image Quality Print shown below was printed by a printer
that has a media advance problem.
Note: The bands appear light because the roller has advanced too much.
Alternatively, the bands could appear dark because the printing material has
not advanced sufficiently.
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