The S-Line powers its printer internally, eliminating the need for an additional power brick. The printer has a quiet operation and prints a fast 23 lines per second. It has an auto-cutter which will help reduce paper jams. Replacing the paper is very easy, just like any standard thermal printer. The printer can be easily replaced in the field. Its tool-less "slider" design allows the printer to be replaced under 60 seconds. More info...