Question about ink cartridges
What's the function of the small, yellow, plastic tab that needs to be removed before an ink cartridge is installed into a printer? (I have an Epson 880, by the way.) Removing the tab doesn't seem to uncover anything in particular -- not that I can see, anyway. It's not like there are any obvious electrical contacts under there.
To prevents either leaks or to check that it wasn't used by anyone before being sold to you, or both?
The plastic strip doesn't cover the part where the ink comes out, so it can't prevent leaks. I suppose your other hypothesis might be valid, though.
Usually, the tape or tab that needs to be removed from a new inkjet cartridge before it's installed in the printer covers a tiny air passage into the inside of the cartridge. When the air passage is uncovered, it allows the ink to flow from the cartridge through the printheads.
Maybe it's to prevent shorts. What kind of wrapping is it in anyway? Is that conductive of electricity or specifically not?
Doesn't it usually cover the electrical contacts? That's a bit important, aint it?
Philip is right, with the tab there is a vacuum - or at least low pressure - in the tank with prevents ink to flow out. It basically is a 'transportation lock'.
Yes, the air-hole theory sounds right.
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