Question about Epson Stylus Pro 4000 InkJet Printer
These are two different problems. If you have an "invalid ink cartridge" message, restart your printer and press the "pause" button once, quickly. It will reset the monitoring of the cartridges. This fix has worked for me on several occasions.
I have a nearly-full 220 ml yellow cartridge in my PRO4000 and my display is telling me to "set it". My local Epson rep can't be bothered to even speak to me so a call to Epson's help line got me a very helpful rep and an address in Long Beach to mail my defective ink cartridge to. Not stellar, but better than my local supplier who doesn't have a PRO4000 to test the cartridge in.
1. Set all the printer cartridge both black and color cartridge (including the empty one)
2. Right click on printer driver properties
3. Click Maintenance tab
4. Click on Ink Cartridge Setting mark
5. In pop up menu, select the cartridge which has ink inside (black only or color only). for more information about reset printer cartridge .
Posted on Sep 06, 2010
Get a CISS for your printer. It will save you TONS of MONEY, never change a cartridge again and it will pay for itself in a month.
I've been using one for the last 9 months, best investment I've made besides buy Apple stock.
Posted on Aug 05, 2009
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Posted on Jan 02, 2017
Found the solution at
Try pressing down on the cartridges after inserting them and closing the top of the cartridge carriage. Worked like a champ on my R320 printer!
Cleaning the contacts on the cartridge with a soft tissue may help too.
Posted on Feb 11, 2009
I tried two things of which one solved the problem. I am not sure which. Secondly, I have an R260 printer which is a less featured member of the printer family uses Claria inks like R360 and R380. I called Epson and they simply sent me replacement cartridges for the two black ink cartridges with which I had a problem. My printer did not recognize these new cartridges either. I noticed that both the ones I bought and the replacement ones have a slot hole near the green chip on the cartridge. The empty cartridge did not have this slot. They just had some circular depressions. So, I put a piece of masking tape over the slot and tried again but still no luck. However, when I removed the cartridge, this time a small piece popped out. This piece connects to pins on both sides. So, it is obviously an interface between the cartridge and the printer. I pressed this piece back in, replaced the cartridge with the tape on it back it and, voila, it works. Most likely this interface piece was loose and simply pressing on the cartridge didn't get it in far enough or who knows. You maybe able to take thiis piece out and replace it or merely push down on it with a pen but first, flash a light on it first to see if it is not sitting awkwardly.
Posted on Apr 13, 2009
i had this happen to me twice with two different people, it is highly possible that your black inks are defective, its also highly possible that one of the other inks are causing this error. take them all out, and put one and see what happens, do this one at a time until you see something screwey.
also possible, the contacts on the printhead are dirty or are pushed in.
also possible, bad printhead.
Posted on Jun 27, 2009
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