Set of cartridges for multiple filling for print head cleaning. The cartridges are filled by cleaning liquid. The set helps to flush printer print heads, which work with sublimation ink. Proceed as with the typical cartridges. After cartridges installing, print 5-7 sheets at least, in order to pull out the remaining ink. After printing, make nozzle test from the printer controller. If on the outprint non-reimpressions are seen, make print head cleaning. Wait 15-20 minutes and make cleaning again. Then wait another 15-20 minutes and make nozzle test. If the non-reimpressions are seen still, leave the printer for about 2-3 hours, in order to let the liquid dissolve the remaining ink. If the printer wasn't used for longer time and the print head is blocked, the process of cleaning can be unreasonably.