Print heads are not as delicate as people imagine. They can be stressed a lot before burning out. One thing is for sure you can damage or burn out print heads prematurely if you continuously print without performing head cleanings during a production run. You should complete them before you start to see a dropout of ink and NOT when you see them. IF you do this on a regular basis you are asking for trouble and a premature damaging of the head. If you don't know when you should perform them the golden rule is about 10 white ink prints and about 15 CMYK only prints.
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