The message says parts inside the printer are nearing the end of

This message means that the printer thinks the waste ink pads are full and so
> it refuses to print until the pads are replaced and the waste ink (protection)
> counter is reset.
> In practice the pads will not be full if this is the first time you have
> received the message so all that needs to be done is to reset the counter. Next
> time you must replace or clean the pads.
> Go to http://www.ssclg.com/epsone.shtml and download the utility.
> Install it, run it and exit it from the main window, now go to the icon in the
> system tray and right click on it. Select waste ink or protection counter and
> select reset. If this gives trouble then uninstall the Epson status monitor and
> try again (you can install the status monitir again afterwards).
> The irony is that the more you use an Epson printer the more reliable it will
> be (due to the heads being kept in good condition) but the people that use
> their printer most will get this message earlier than others. Some people never
> see this message. It is a good printer and well worth the effort of doing this
> at no cost.
> Tony
> MS MVP Printing/Imaging
>
The SSC service utility won't reset the R1800 counter.
The Epson service program is needed and can be downloaded from:
http://www.2manuals.com/

The R1800/2400 service manual can be downloaded from that site.
If you want to have a go at replacing the pads, then instructions are in
the manual.