Depends on what you mean by "reset".
If you're referring to the waste ink counters, you can either:
- Locate a copy of the AdjProg service utility and use that to reset the waste counters
Note: Will not work on MacOS or Windows 8
- Download the WICReset (for windows) or iWIC (for MacOS) and purchase a WICReset key to reset the waste ink counter that way.
Whatever you do, remember that resetting doesn't deal with the waste ink inside the pads so you should be looking at changing the pads (not easy to do yourself) or fitting an external waste ink tank like a printer potty.