I have got the roll, which is used to plug the ink channels, when the printer is not used, worn out and finally broken. So here is the printed substitute. I have bought the original system from http://www.cityinkexpress.co.uk on eBay. The eBay members nick is footnote (http://www.ebay.com/usr/fotorite?_trksid=p2047675.l2559)I have printed it in high resolution on a several raft layers as this is a small and delicate part, which has to roll well. I have also applied a little bit of LR3 grease to make it rolling smoothly in the CISS.