"He who marches out of step hears another drum." ~ Ken Kesey
Gonna take a spin on your 2 choices, we count an impression as each time the press indexes.My 2 cents...
You are correct regarding the platen warming up issue, depending on the programing software on the press quite a few of us have creatively 'fooled' the press into running for several minutes during a warm up cucle and this actaully records TOTAL impressions printed.For instance when we do revolver PFP on an older press without legit revolver programming an order of 50 garments PFP will hit the counter as 100 impressions.Daily reports may be a better place to record impressions billed.
Sounds arbitrary for everyone really. No wrong or right.For me, I would be in the camp of Squeegee strokes. A double stroke is two impressions. Any transfer of ink (in my opinion). Probably same for total impression count on the life of a machine. It would count roller strokes as well.On the I-Image machine, it counts every exposure, and every print even if it’s just a nozzle Check.
Here we count a "finished impressions" as one impression. 3 color front6 color back1 color hip= 3 impressions 150 shirts x3 = 450 impressionsI see how one makes the case that every time the squeegee pulls it's an impression.I guess it depends on how you're using it.Sent from my Pixel 3a XL using Tapatalk