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How to Refill Epson T0781, T0782, T0783, T0784, T0785, T0786 Ink Jet Cartridges


Our how-to guide shows the easy fill process of the T-0781, T-0782, T-0783, T-0784, T-0785 & T-0786 ink jet cartridges. Also covers information about the ARC (auto-reset chips) and refilling information.Instructions on Filling & Refilling Epson Compatible T781, T0782, T0783, T0784, T0785 & T0786 ink jet cartridges with ARC (auto-reset chips).

The refillable cartridges for T0781, T0782, T0783, T0784, T0785 & T0786 contain an auto-reset chip. Once ink level falls to a predetermined level the chip automatically resets to near full capacity.Cartridges have a 10+ml capacity per cartridge.

These cartridges are of a 2 plug design, but not pressure filled as previous 2P cartridges were.One plug is used as a fill hole while the other is a vent plug. The image on the right shows the two plug locations.

Filling & Refilling:

  • Remove clear rubber fill hole plug
  • Fill injector with desired color ink.
  • Insert injector needle into cartridge
  • Slowly inject ink. Make sure you do not push needle all the way to the hub (yellow plastic portion of needle.) Inject ink slowly
  • When completed injecting ink replace original clear fill hole plug.

That is it. Cartridge has now been filled and is ready for use.Though the image to the right shows the cartridge laying on it side this is not recommended. It was taken this way to show the ink in the cartridge. Always keep cartridge upright.

Before attempting to use any cartridge make sure you have ALL cartridges filled.Cartridges do not work independently. The printer will show an error message of only one – five refillable cartridges are installed.

Replace any cartridges already in the printer with a complete set of refillable cartridges.
Once all cartridge have been inserted remove the vent hole plug from the cartridge.The vent hole plug is the color plug. On the image to the right the two leftmost cartridge plugs have been removed.

After removing all six plugs hit the ink cartridge button.Printer will begin to run an initial cartridge prime, the same as when any new cartridge is installed.After prime has been completed run a print test.


As with the OEM cartridges, refillable cartridges may not appear on the Epson Print Status window at all times. (image on right). If you open your printer properties window you can see the current status of the ink levels.(image on left of picture). This usually only occurs when running multiple print job without breaks in between.

Once a break in the print occurs your ink level will appear in the Print Status window once again.The ink level not appearing in the Status window is not an aftermarket related issue, but a printer related issue. This occurs on both OEM cartridges as well as aftermarket.

Never install less than 6 refillable cartridges at one time. Printer will not recognize the Epson cartridges when one of the refillable are installed.

Cartridge Chip auto-reset

These cartridges will reset automatically. There is no hitting cartridge change button or turning printer on and off required. Cartridge will all auto-reset at same time. It is advised that all cartridges be refilled at this time to prevent any cartridge running out of ink.Some cartridge may contain a good deal more ink than others depending on the first cartridge that requires reset. In most cases this is black. (under testing of 5 sets using of cartridges on 1 each R260, R380 & RX580).


After initial fill when you are ready to refill return allplugs back to cartridge. Remove cartridges from printer and repeat fill process. There is no difference in refill from the initial fill.

Posted by Fz 10 Responses

10 Responses to “How to Refill Epson T0781, T0782, T0783, T0784, T0785, T0786 Ink Jet Cartridges”

  1. RONI says:

    hay… i have printer epson c90 black cartride fell not god, ther’s line when print, even i change cartride the problem stil there, i have same question how to disable black cartride, thank

  2. silvia says:

    deseo comprar este kit de cartuchos recargables. En donde los puedo conseguir o con quien puedo habalar?.

  3. pepeuve says:

    How to made a handmade CISS.
    Visit my blogs.

    Sorry I don’t speak English very well.

    Best Regards

  4. Ms Veronica says:

    I have a HP Photosmart C6180 All-in-One Printer Scanner Fax. I have used it to print photos, art work, scrapbooking, and even print on canvas. The replacement ink cartridges are expensive. However I would suggest getting a continuous ink system instead buying individual ink cartridges….it is equal to 61 cartridges of each color so the need to refill it is alot less often. They are easy to install and not messy at all…it took me about 5 minutes to get mine completely installed and when I need to refill it the tanks are outside of my printer so there is no need to remove the cartridges. The cartridges are also set with non-expiring chips so there is no need to reset the printer. I am very please with the quality of the ink also. It has saved me a fortune. The best place I found that has all printer models and I bought mine here Printer Ink Cartridge Refills and Continuous Ink Systems

    Good luck and happy printing ­čÖé

  5. sandi2000 says:

    #RONI sorry because now i don’t know how to disable black cartridge in the canon c90

  6. Anthony Perez says:

    How do I refill a cartridge that has no vents on the top as per photo above? Am trying to refill an OEM cartridge.

  7. ADENA says:


    I am looking for ink cartridges for the Epson CX3600. I have bought compatibles in the past but the ink quality is not so great or the chips dont recognise. Any help would be appreciated ­čÖé

  8. Mark says:

    It seems like none of the software or hardware reset options list the EPSON R260, R280 or Stylus Photo 1400. Is there anything out there
    for these models ???? Thanks.

  9. Carlos says:

    Tengo un impresora modelo EPSON STYUS PHOTO R-380, tiene muy poco uso, solamente le he usado para la impresi├│n de documentos, d├│nde puedo optener los cartuchos recargables, pero ├║nicamente negro, o bien c├│mo puedo hacer para que solo se utilice el negro?.
    Gracias por su colaboraci├│n.

  10. Randy says:

    Is there a no name ink cartridge that I can use in place of Epson T127120 black ink


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