There are many folk who are suffering from severe printing problems using the Epson 1270/2000P/870 USB printers.
Symptoms may vary.
The solution was obtained by Bo Wannerberg who posted the solution in the Adobe Photoshop:Windows forum which is as
The problem you have highlighted with the error "disk error -36 in Photoshop on Windows 2000 running USB on Stylus
products can be resolved in the Windows 2000 printer properties. If you go into the printer properties and select the
Advanced tab. Down in the bottom right hand corner is an option called "Enable advanced printing features". You need
to disable this function and the printer will run correctly
(posted from the UK)