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Repair and disassembly guides for Epson printer. The company was founded in 1942 as Daiwa Kogyo, Ltd., but merged with another company in 1959 to create Suwa Seikosha Co., Ltd.

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Is there a solution for Epson ink cartridges not being recognized?

I purchased a new box of "genuine Epson" ink; all of the colors (black, magenta, cyan, and yellow.

I removed the empty cartridges (cyan, magenta and yellow were low), shook all of the cartridges, pulled off the tape cover and installed the cyan, magenta and yellow cartridges.

The cyan ink cartridge was the only cartridge that could not be recognized at that time.

So, I reseated the cyan cartridge. I still got the message that it wasn’t recognized.

Then I reseated the cyan cartridge again. I still got the message that it wasn’t recognized.

So then, I power cycled the printer.

I turned the printer off, I unplugged the printer from the wall, and I unplugged the power cord from the printer for a complete power cycle for about 5 minutes.

I plugged the power cord into the printer, plugged the cord into the wall outlet and turned on the power button.

That did not solve the problem.

I went to the Epson Support Services site and other internet sites and saw tips for solving this problem.

I followed the instructions on the Epson site, which were the same steps that I had tried as I mentioned above, but this time, I used a soft cloth to clean the cyan connections on the cartridge and in the cartridge carriage and I checked each cartridge to make sure the gold colored chip was on the cartridges. They all have the gold colored chip.

It didn’t fix the problem.

Then I saw a tip that said that installing firmware would fix some problems with the printer.

So I entered my printer information and was returned a download of firmware for my printer.

The firmware installed successfully.

Now, the black ink cartridge that had been working is no longer being recognized along with the cyan ink cartridge.

It seems when you install a defective cartridge and then take it out, the cartridge carriage in the printer becomes “unture” and if that’s not the case, then the problem has to be with the firmware or maybe both.

Something in the printer seems to get set when you install and then remove a defective cartridge. Somehow there is no way for the printer to reset itself to accept another cartridge install.

How do you make the printer "un-remember" the removed cartridge?

So now what do I do? How can I fix this problem?

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@texaspeach what exact model number is your printer?

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So this is 50/50 :-(. If you own one of the newer "black cart" series (100+ series tanks, they use a sponge vs the pressure valve the old printers used) those are almost all DRM as Epson locks those down to block 3rd party ink - they usually have a marker in that they came out when the ET- line became mainstream so Epson put DRM on them to segment the market. Don't update the firmware on these if you want to use 3rd party tanks! A few early units aren't DRM ridden junk, but there's more that have that problem then without.

The older ones with the grey carts lack the DRM, and 8/10 times it's a bricked chip where it hit 25% or it's just bricked, but sometimes it can be the printer contacts. If the springs feel good on the contacts, it's the cartridges.

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Seems like this problem could also be hardware-related. If they are both genuine cartridges, and at first the black cartridge was recognized, I would be worried that the sensor may be dying. You should be able to check through the printer itself or the Epson printer app if there are any new software updates, which I would keep an eye out for. For now, you may just have to buy new ink and see if it works fine with the new ink cartridges. If it does, the other ones are just a bad batch; if you continue to have problems, it is more likely a bigger issue.

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TexasPeach will be eternally grateful.
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