Question about Epson CX8400 All-In-One InkJet Printer

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Expson CX8400 All-in-one printer

I just bought the above new printer that is compatible to my computer, but when I try to print the message says Cannot Recognize Print Cartridges. I have installed cartridges correctly.

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  • 2 more comments 
  • Nancy Dignan Jul 17, 2008

    I could not use any ink cartridge but Epson' will not recognize the cartridge no matter what I do.

  • mgfaglioni Aug 10, 2008


  • lovetokiss19 Aug 16, 2008

    when i try to hit "setup" to solve this problem it says "invalid operation". What do i do. this is the worste printer ever.

  • haroldtaylor Dec 06, 2008

    Same printer, purchased same time from Staples UK. I have installed Black, Cyan, Yellow correctly with no problems before. I was almost finished printing 12 page Word document and it stopped saying I had run out of Magenta and Black. I could not get new inks then so had to abort print run and start agin when I had the inks.
    It now says that it does not recognise my cartridges- black, cyan and yellow after replacing Magenta only. So it does not print. I have not touched any other cartridge.


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I had a problem with one of my Epson ink cartriges and called the company and they replaced it for free. Also many companies that sell knock off ink cartridges now have fixed the problem and now they are recognized by the printer.

Posted on Oct 29, 2008

You cannot enter Setup Mode while there is an existing Ink Cartridge Error being posted.

Posted on Oct 29, 2008

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Mother ******* noobs

Posted on Oct 03, 2008

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Try this and post back results

Make sure the ink cartridges are installed properly.

  1. Press the Setup button, use the Expson CX8400 All-in-one printer - leftarro.jpg or rightarr.jpg button to select Maintenance, then press OK.
  2. UExpson CX8400 All-in-one printer - uparrow2.jpgsrc=" CX8400 All-in-one printer - downarro.jpgrrow2.jpg" class="h_mi" /> or downarro.jpg button to select Change Ink Cartridge, then press OK.
  3. Open the printer cover, then open the cartridge cover.
  4. Press each ink cartridge down (you may hear a cartridge click into place if it was incorrectly installed the first time).
  5. Close the cartridge cover and the printer cover.
  6. Press the OK button.

Posted on Jul 11, 2008

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