Abstract: The present invention relates to a three-degree-of-freedom library preparation cassette and a method using the same. Two-degree-of-freedom movement capability is provided for mutual positioning between a pipette and reagent wells, within a limited small volume, by combining rotation of a mixing reagent tray and relative horizontal movement between the pipette and the mixing reagent tray, thus greatly increasing the number of reagent wells that can be provided, thereby increasing the functions and applications of the whole system; and the device is simple in structure, low in cost, and suitable for disposable use.

Abstract: A printing unit for a weighing device, which has a housing and a load plate, includes an interior configured to hold a print medium. A front panel has a printer opening communicating with the interior for passage of the print medium therethrough. A top cover is disposed above the front panel and extends in an opening direction from the housing of the weighing device, past an edge of the load plate of the weighing device and to the front panel. A side edge cover is disposed at each side of the top cover. The top cover, front panel and side edge covers are shaped so as to direct a liquid from the load plate toward at least one of a bottom region and a drain of the printing unit without entering into the interior.

Abstract: A printing unit for a weighing device, which has a housing and a load plate, includes an interior configured to hold a print medium. A front panel has a printer opening communicating with the interior for passage of the print medium therethrough. A top cover is disposed above the front panel and extends in an opening direction from the housing of the weighing device, past an edge of the load plate of the weighing device and to the front panel. A side edge cover is disposed at each side of the top cover. The top cover, front panel and side edge covers are shaped so as to direct a liquid from the load plate toward at least one of a bottom region and a drain of the printing unit without entering into the interior.