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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.
Alex Chernavsky
To prevents either leaks or to check that it wasn't used by anyone before being sold to you, or both?
Frederic Faure
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.
Alex Chernavsky
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.
Philip Dickerson
Maybe it's to prevent shorts. What kind of wrapping is it in anyway? Is that conductive of electricity or specifically not?
www.MarkTAW.com
LOL!
Incoherent Abbreviator
IA: LOL
IA FAN
Doesn't it usually cover the electrical contacts? That's a bit important, aint it?
Mike Swieton
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'.
Gertjan
Yes, the air-hole theory sounds right.
Alex Chernavsky
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