If you have ever struggled to get your printer to print perfectly, without banding, this information may help you.
Inkjet nozzles are very small, about 1/3 the diameter of a human hair. Hard to see with the naked eye. On the bottom of the cartridge or print head there is a bank of nozzles (16, 32, 64 or more) for each color. If one or more of these nozzles are blocked, you will see skipping or bands of white on your printouts.
This is not good. Not only will the white bands (no ink) be objectionable, but the blended ink colors will not come out right. The printer only has base color to work with (cyan, magenta, yellow, black in a 4 color printer). All the other 16 million colors are from blending these base colors. If some of the nozzles in the print head are blocked, the colors will be off, sometimes way off.
Okay, so what to do to get them unblocked.
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