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Click on yhe following limk to see the online manual Click to open the manual. Click on the Printing. Under this title you will see about ink cartridges. Hope this will work for you. If it is helpful. give a rating. luciana44
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.
you can buy an epson chip resetter. i think they 7pin chips .try ebay about a fiver.it should reset the chips.the cart that is empty use your restetter on that and put that chip on the one that doesnt work.should be ok then.resetter led nornally goes green if chip is reset.ink level goes up to full.when carts show empty reset and you should be able to keep printing a few more pages.check chip contacts are clean no dirt etc.try resetter on non working cart light should go green.hope this helps
Please follow the instructions below to ensure correct installation:
Lower the printer's output tray and open the top cover.
Connect the power cable to the printer.
And switchon the printer.
The print heads will now move to the replacement position. If they do not move to a change position press the Red ink button on the printer.
Lift up the ink cartridge clamps.
Before you open the new ink cartridge package, shake it four or five times. Then remove it from the package.
Do not touch the green chip on the side of the cartridge. This can damage the ink cartridge.
Remove the yellow tape from the bottom of the ink cartridge.
You must remove the
yellow tape from the cartridge before installing it; otherwise, print
quality may decline or you may not be able to print.
If you have installed an ink cartridge without removing the yellow
tape, take the cartridge out of the product remove the yellow tape, and
then reinstall it.
Do not remove the transparent seal from the bottom of the cartridge
or the label on the cartridge; otherwise the cartridge may become
unusable or ink will leak.
Place the ink cartridge into the cartridge holder with the bottom down. Then push down the ink cartridge until it clicks into place.
Repeat steps 4 to 6 for each ink cartridge.
Close the ink cartridge cover and press it until it clicks into place
If you find it difficult to close the cartridge cover, make sure all the cartridges are firmly seated. Press down on each cartridge until you hear it click into place. Do not attempt to force the cover closed.
Close the printer cover and press the ink or start button to begin charging the system. Charging can take up to three minutes and is complete when the power light stops flashing.
While the ink system is charging do not switch off the printer.
You must surely have sorted this one out by now Doris! However, if you haven't, how to change print cartridges on a
DX7450 is very clearly explained in the user handbook (on the CD that
came with your printer). Insert the CD and select "Custom Install" then "Users Guide". Once its installed, double click the new Epson Icon on your screen and selct "Printing" then "Replacing Ink Cartridges". If you don't have a CD, download the User's Guide from the Epson website at http://www.epson.com - just choose your locale, then select Get Drivers and Support - Printers.