We are using the universal driver ver.6.8.0 on windows 10 6-bit and 32-bit. Sometime, when we printout commond document as excel, lotus note email , word , web page. the printer print out  strange garbage character word in a single line at the top page and non-stop printout. the case was occur above in one times every day. change the driver to 5.8.0. the problem was not improve.