Pulling the power would prevent the print head from parking and shaky hands aside, 'fotofreek' said that the ink would flow out of the exit hole if the cart was opened.
I suspect that's because a lot of retailers use the US advertising copy.
Staples Canada is an example where it would be hard at times to figure out what was in the box.
I used a small nail slightly larger diameter than the needle, held it over a match using a pair of pliers and when I judged it right, pushed it in, gave it a twist and it left a nice clean hole.
In this and most other forums, responders are stuck not knowing the level of experience of the person asking the question.
Sometime, one is damned for stating the obvious or double damned for being too advanced.
Most Questioners have the maturity and grace to deal with this without falling of...
I don't have a Mac, so can help little.
Do the various folders shown in the path have the correct permissions to open them.
I expect that the problem is more a Mac than a Printer problem and a Mac forum might be better.
My (erroneous) take that the purge unit had been found ok and a new head with new oem carts were installed - thus pointing to an electrical problem upstream from the head.
I'm glad I was wrong and the printer may be saved.
If the ink levels on all the new carts are going down then the purge unit is working .
If the cyan is not going down - what part of the purge unit is dedicated to that slot in the printhead?
The way I see it is that if the other colours are working - the purge system is working - we tell people to put liquid on the pad and see if it sucks, then we say the purge system is good, so the problem lies elsewhere..and replacing the head and the carts is going beyond heroic.
I hate being...
I don't understand how the purge system would only be bad on the Cyan cart - it's the same pad for all the colours?
I had a IP5200 that wouldn't give a good nozzle check or respond to any amount of cleaning carts and purges.
I replaced the printhead with a new one and the same problem...
I'm surprised that no one has had the initiative to scan the tray and let people decide if they can fashion one - that's what people with the earlier printers did - I guess they had more get up and go.