Hi I was looking things up and it seems that many were using this canon engine. Here is a list I found: Alcetal 8376 Anzac 3017/3017-2/3024 Canon LBP-NX/LPB-NX 600/P-170 Chameleon Proffing Sytem Colorspan Winprinter 1000 GBT 6817 IIISi Genicom Corp 9170 HP IIIsi HP 4Si 4Si/MX Memorex 1917 DEC PrintServer 17 17/600 Interface Systems 7817/ ISI7817 Intergraph Corp Pacific Semi Turbo PCL5 Newgen Sys Turbo PS/440ND OCE 6500/6525 QMS 1700/1725/PS 1700/PS 1725/1725SLS PS QMS 1725E/1725 Ex Print System Siemens 4824 Highprint 4824/P10/15 SRS Imaging Imager 17D Tandem 5577 Wang LDP-17 Xerox 6R901 I noticed that the number 17 seems to be a common theme. Dwight