In Windows you can just use Task Scheduler and something like Irfanview which can be used with a command prompt to do the printing. I print Bill Atkinson's 14 balls image but that is probably overkill. I print every 3 days. Not sure if 2 or 3 days is the right number.
Thanks, I will look into this as well. Its true, I'm not sure if 2 or 3 days is the best as well. All I know is that if you wait too long, the printer instantly does a 12ml clean cycle, which is such a waste because printing a target would just use 1-2ml. Even waiting a week between prints can induce a much bigger clean cycle than 12ml. Leaving the printer in standby mode is kind of useless because sure, it will turn on to agitate and it will also sometimes do a random nozzle check, but it doesn't do anything to maintain the printhead really. By manually printing something every 2 days, you save so much more ink by not having these forced clean cycles at whatever time intervals are programmed into it.
I have discovered that using just 1-2ml every 2 days is generally good for a few weeks, but if I really don't print, then eventually I am hit with a fairly big clean cycle. But usually, I do have something big enough to print at least once every 2 weeks, so that really gets the ink flowing, and just need something to carry me between big print jobs, or when I'm away for a week, hence why I'm looking at this solution.