How do I change the ink cartridge in an Epson WF-3540 printer?

SOURCE: Clean "Waste Ink Cartridge" Epson R300

Had the same problem. (its a work around without removing the waste ink pad)
Took alot of work but I fixed it.
Frist thing you need to know that error means your ink waste pad is full. Its a $75.00 to replace but there is a work around it.
You will need this free app. SSC service utitlty.
http://inkjetprinterhelp.us/epsonSSC.html Its a great app.
Instrusctions are on the website there.
You will also have to Open the access panel on the rear of the printer (remove screw) and look inside carefullly with a flashlight. You will see a tube (down and to your left) coming from the cleaning pump and it will have an open end on it. This is the tube that delivers ink to the waste pad.
Use a piece of coat hanger wire or equivalent, and fish out this piece of tube. Bring it to the outside of the printer, thru the access panel.
Find yourself a suitable container (Tupperware or a plastic cup or jar) that is not too tall. Put the tube into this container and secure the tube and container so they won’t come apart or lose connection if the printer is moved.
If you wish you can make a hole or notch in the access panel cover so it can be replaced.

SOURCE: refilling ink cartridges for epson printer CX6000

Hello,
You can purchase re-manufactured cartridges online from Re-Inks and Atlantic Inkjet. This is usually the easiest way to get them, if you refill them your self they have a better chance of leaking and ruining your printer.

SOURCE: My Epson Stylus NX 400 is not printing.

no it cannot. Those multi-colored cartridge system requires that you put in every single color, AND ensure that they are not empty before they will print. Even if all you want is a black and white copy.

SOURCE: changing an ink cartridge Epson stylus sx105

http://safemanuals.com/user-guide-instructions-owner-manual/EPSON/STYLUS%20SX105-_E

that guide shows how to change the cartridges and no you dont have to wait untill they have run out to change the cartridges

SOURCE: Epson TX100 won't recognise ink cartridges.

Yes, Genuine Ink Cartridges.

Did you use Epson Genuine Cartridges?

ALL…. Epson & Brother Requires Genuine Epson Cartridges. !!!!!!!!
That sounds like your problem.

In Purchasing Epson's CX 5400, CX4600, & CX7400 and more, I found out that Epson does not like Generic Printer Cartridges. I also Purchased a Brother. That also does not like Generic Print Cartridges. Color that should be Yellow, will turn out Green, Blue Brown, etc.

These printers have a CHIP that will detect if it is Generic or Genuine. When they see it’s Generic Cartridges, it will print lines thru the words, stripes across the picture and also do a mix match with the colors. It also will not let you print anything, if only one of the cartridges is empty.

I wanted to print only Black, and would not let me, because I did not have any ink in one of my cyan cartridges. Go figure.

That's what these Companies do., so they can keep selling the ink cartridges. Some Printers, are able to use Generic, and some are refillable. Some you can refill them up yourself and I heard, quite MESSY.

So I learned, thru trial and error, that you must use the ORIGINAL Genuine Cartridges for these PRINTERS. Some people say some models work fine compatible, but not mine.......

I had to replace the printer, but Epson, Lexmark & Brothers are always on sale. My Brother & Epson cost me $50.00 with Rebate. .

This is the only advice I can give you. If you find this helpful, pls rate me.

Thanks and Good Luck :0)

Testimonial: "Thanks for your help. I have started using generic cartridges as I did with my Canon for years. Your help is much appreciated."