My lexmark x3470 wont recognise compatible ink Cartridges any know of a way round this

Lexmark does not recommend the use of refilled, re-manufactured or clone cartridges. Not only that you might not get the print quality you expect from ink that is specially formulated by Lexmark but you'll never know if the cartridge will actually work with your printer or harm your printer.
I highly recommend that you replace your compatible cartridges with genuine Lexmark cartridges to get the best printing results.

For the most optimal output experience with your AIO, Lexmark recommends that customers update their firmware. The firmware helps ensure that customers receive the highest yields of ink available from the cartridges, which offers the greatest value and means fewer necessary cartridge replacements.

If you choose to upgrade firmware, note that unauthorized use of third-party 'cloned' cartridges will no longer be possible.

When purchasing ink cartridges, Lexmark customers have two options:

Regular ink cartridges without license terms (100A/100XLA) that you may a) return to Lexmark free of charge (for recycling by Lexmark), b) refill, recycle or remanufacture themselves, or c) provide to third parties for refilling, recycling, or remanufacturing. Any Regular ink cartridge can be refilled by a customer or a third party and will continue to work in their Lexmark printer.

Return Program ink cartridges that provide customers with an up-front discount in exchange for their agreement to use the ink cartridge once and return it only to Lexmark for remanufacturing and recycling.

For the most optimal output experience with your AIO, Lexmark recommends that customers update their firmware. The firmware helps ensure that customers receive the highest yields of ink available from the cartridges, which offers the greatest value and means fewer necessary cartridge replacements.

If you choose to upgrade firmware, note that unauthorized use of third-party 'cloned' cartridges will no longer be possible.

When purchasing ink cartridges, Lexmark customers have two options:

Regular ink cartridges without license terms that they may a) return to Lexmark free of charge (for recycling by Lexmark), b) refill, recycle or remanufacture themselves, or c) provide to third parties for refilling, recycling, or remanufacturing. Any Regular ink cartridge can be refilled by a customer or a third party and will continue to work in their Lexmark printer.

Return Program ink cartridges that provide customers with an up-front discount in exchange for their agreement to use the ink cartridge once and return it only to Lexmark for remanufacturing and recycling.

Please remove the cartridges from the printer. Take a dry lint free paper towel and gently wipe the contacts on the back of the cartridge (not the bottom from where ink is present). Wipe the contacts inside the printer (on cartridge carrier). Please snap the cartridges back into the cartridge carrier and please try to print a printer self test.
Good Luck!!!!

If you have refilled the cartridges you got along with the printer, you can't reset them. 23 and 24 are not meant to be refilled. They are what Lexmark call "return program cartridges"- they can't be refilled, you can send them back to Lexmark ( that's why they are called "return cartridges"). You need to buy either 23A and 24A or 34 and 35, those cartridges are refillable.
Here is a link to Lexmark, with a list of cartridge compatibility for your printer:
http://lexmark-cartridges.com/cfv2/printer.php?lang=uk&partner=&productName=x3550

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This is a common problem and is caused by faulty or missing chips onthe compatible cartridges. You will need to get them replaced otherwise the printer will not operate. Contact the vendor where you bought them from and ask for repalcements or a refund.

1st thing to ask is are they genuine cartridges, as they wont work if they are compatible. type or refills. This problem is common in this brand of printer.

Epson cartridges are microchipped.

Do your new cartridges carry the same chip?

If not, they will not work.

If all else fails, return them to the supplier and explain they are not recognised by your printer.

More than once I've gotten cartridges that we're bad (and some even empty) right from the manufacturer's box. Return it for exchange as defective (you won't get money back for opened ink, but they should exchange it). I'm assuming that you've already re-installed this cartridge a couple of times and that there we're no previous problems. Good luck!

Using replacement cartridges that come without a chip seems to be the problem I had with the Canon Pixma 510 printer they are cheaper
but if they do not show the ink levels then its inconvienent so I have but Canon products with a chip and they work perfectly.