(Quoted from Terry Combs and Impressions Magazine.Full article here.)
Most garment-decoration methods involve “dialing in” machines to produce orders without hiccups from beginning to end — with the last print being like the first. When using a direct-to-garment (DTG) printer, other variables throughout the process potentially can impact consistency and quality from garment to garment.
With most DTG printers, the first step upon startup is to shake or agitate the white ink. Next, print a nozzle check. If you see breaks in the image (clogged nozzles), perform head cleanings until the nozzle check is perfect.
Some printers allow only head cleaning of the clogged nozzles, saving ink cost. If, during production, you see banding (horizontal lines in the image area), do additional nozzle checks and head cleanings until clear.

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