The message is telling you that the waste ink pads are almost full, these pads
collect ink that is used for cleaning the printhead.
If you don't want to have a full service you can just reset the waste ink
counter, this printer is supported by the the utility available from
http://www.ssclg.com/epsone.shtml
Once you have reset the counter you should be OK until the next time you get
the message but the second time you get the message the pads must be cleaned or
replaced to avoid ink spillage in the printer.
Download the utility and install it, open the utility and select your printer
from the list.
Exit the utility.
Right click on the icon in the task bar and select protection counter, reset
the counter.
If you have difficulty then uninstall the status monitor for your printer and
try again.
Tony