detecting ink level in a ink cartridge

[kulki]

Hi
I have an epson 880 injet printer. When ever I print it actually shows me how much ink is remaining in the cartridge. How does it detect this? Or does it merely count down estimating how much ink should be remianing after having printed so many pages.?

 

[bunker]

It knows how much ink is in a standard cartridge. It knows how much ink it uses when printing. It subtracts amount used from amount supposed to be in the cartridge.

This is basically a best guess because if you frequently swap cartridges (e.g. photo for black) it can't keep an accurate measurement of how much is left.

Just keep a spare handy and replace it when the prints look like crap.

 

[HomeBrewerDude]

hold it up over your eye and poke a nail through the bottom of the casing.


j/k 😀

 

[kulki]

hmm i c
So they dont really have anything sophisticated mechanism to detect the ink level

 

[Howard]

If you're talking about black ink cartridges, you can do it this way. Weigh a fully-filled cartridge. Drain out all the ink. Weigh. Subtract 2nd value from the 1st. This is the weight of the ink. I'm sure you can figure out what to do next.

 

[swayinOtis]

My Lexmark does the same thing. It is in no way accurate.

Don't ever buy a Lexmark inkjet. They rip you off on cartridges ($40-$45) that don't last no time, and are not supposed to be refilled. By the time you refill it they are dried up and won't work very well. Lexmark makes most of its money on cartridge sales. The Lexmark printers are more expensive to use than others.

 

[bunker]

<< My Lexmark does the same thing. It is in no way accurate.

Don't ever buy a Lexmark inkjet. They rip you off on cartridges ($40-$45) that don't last no time, and are not supposed to be refilled. By the time you refill it they are dried up and won't work very well. Lexmark makes most of its money on cartridge sales. The Lexmark printers are more expensive to use than others. >>


While I agree with most of what you said (I have a Z51), I've found that when they dry up I can take a q-tip w/ alcohol and wipe the head and get some more use out of it.