How to change the chip on my refillable catridges for the EPSON 4800 STYLUS PRO

SOURCE: epson stylus pro 4800 print head problem

Are you getting a nozzle check at least?

SOURCE: Epson Stylus pro 4800 field repair manual

Epson is pretty cautious with their proprietary materials.

SOURCE: epson stylus cx9400fax series printer

There is no chip resetter for this model at this time. However, one is to be available in the near future. So for now you must purchase new/refilled cartridges.

SOURCE: how to remove catridge from epson stylus cx5500

Take a look, shows it in both the quick start and user manual links:

http://support2.epson.net/manuals/english/spc/styluscx5500/pdf/cx5500_sh_en.pdf

http://support2.epson.net/manuals/english/spc/styluscx5500/use_g/index.htm

SOURCE: how do i reset the ink cartridges in my epson

You can get a chip resetter from any of the places that sell refillable cartridges as I did. Works great. They generally sell for about 10 bucks or come with a complete set of the refillable cartridges. This device will also reset the chip on the waste tank so you won't need to go through the button pushing sequence found in the field service guide - that's the one that Epson doesn't want you to know about or have.