I thought these FAQ's on the 3800 printer by Eric Chan may be helpful to those owners of the 3800 and 3880
http://people.csail.mit.edu/ericchan/dp/Epson3800/faq.html#platengapnumbers
Dave
http://people.csail.mit.edu/ericchan/dp/Epson3800/faq.html#platengapnumbers
Dave