I'm printing a bunch of 8x10s on 10" roll paper for a client using an Epson 4900. On the back of the prints I'm getting some ink, about 3/8" from each edge. Looks like it's coming from the borderless printing collection pads. Is there any way to prevent this from happening?
First, I'm betting this isn't it, but are you sure there isn't ink on the platen rather than the pads? When ink gets on there, it takes forever to get it all off... Been there a few times.
Second, if you run a bunch of roll paper (hopefully cheap, like bond/plotter paper cheap) back and forth, that should help soak up all the ink that's "loose." You can get really cheap thin paper on eBay, like 20lb bond through a buy it now for 24" x 150' for $22 shipped.
Third, I previously made a note of a place that sells part "1467289", for the 9900, named "POROUS PAD,PLATEN" for 4.03 Euros. I assumed that was for these collection pads. I just looked and they ave 4900 parts too. They have POROUS PAD,PAPER GUIDE,FRONT, -- RIGHT, RIGHT,C, LEFT, LEFT,B, RIGHT,B for similar prices at http://www.gedat-spareparts.com/epson/Inkjet_Printers/STYLUS_PRO_4900/list
-- not positive this is the correct piece, but it seems to be. It's quite possible there's a US supplier for these as well, I just never looked enough.