What would you say in everyday life if you wanted to buy them?
We need to buy some ______.
- pen ink holders
- ink reservoirs
- pen shanks
- pen rods
- small tubes with ink?
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It looks like magic, the pen seems to be floating in midair! But I'm guessing it's lying on a glass top table, neat illusion though. PS When the ink dries up, it's "time to buy a new pen".– Mari-Lou AMar 3, 2017 at 9:53
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kids.britannica.com/comptons/art-53777/…– Mari-Lou AMar 3, 2017 at 10:05
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1 Answer
According to howstuffworks.com, How Ballpoint Pens Work, it is called an ink resevoir:
The ball rotates freely and rolls out the ink as it is continuously fed from the ink reservoir (usually a narrow plastic tube filled with ink).
However, in a context where you need to buy more and you're at the store, I think that you should ask for pen refills. From Office Depot:
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4+1 for refills. You might also mention ink cartridges, which is the more common term for fountain pens as opposed to ball point pens.– verboseMar 3, 2017 at 9:58
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"ink reservoir" is the functional name for it's purpose. Any container or cavity inside a pen that holds ink is the ink reservoir. In non-refillable pens, the reservoir is a cavity in the pen body. A replaceable tube of ink is typically called a "refill" when it includes the writing tip, or an ink "cartridge" if it contains only ink. Mar 3, 2017 at 22:11