Print defect that comprises perceived parallel lines in solid or halftone pattern area fills. The results is that the fill areas do not look smooth.

The cause could be either blocked nozzled, nozzles not firing completely or straight, or lack of printer calibration.

Distinct levels of color in an otherwise continuous lend of color, caused by printing gradients without sufficient color information.

Horizontal striping in an image caused by a head malfunction. Usually this is either a misfiring head or improper media feeding.