We have some 4000N's. We bought them within the last 6 months. We are using them for small workgroups, such as you describe. We've had no problems yet. We are not duplexing. ======================================================= Kyle Harriss voice: (218) 726-6546 UMD Library email: kharriss at d.umn.edu 10 University Drive Duluth, MN 55812