As the Burdick E350, Eclipse LE, LE2 and Eclipse 850 EKG machines get older their paper feeders fail and EKG paper feeder problems occur. A common problem is the roller stops gripping the paper and jams or does not feed/load the paper properly. Your repair technician may have told you that Mortara (the company who took over Burdick) no longer supports these systems and no parts for these units available. In which case you are out of luck.
Medicanix has developed a fix for the EKG Paper Feeder Problems on the Burdick E350, Eclipse LE, LE2 and Eclipse 850 EKG machines so before you throw the unit away you might want to ship you unit to Medicanix for repair:
30 Nurney St
Stamford CT 06902
Be sure to include all your contact details in the package and use proper packaging so it will not get damaged in shipping.