A support for manual grease guns has a base and lever-restoring mechanism. The respective server part of the algorithm is located in a first hearing instrument unit, while the thin-client part is located in a second unit in the binaural hearing instrument set. The flange portion and the sleeve portion being formed of copper alloy of mutually difference composition. The conveyance unit includes a transfer device that transfers the visible image onto the transfer material, a fixing device that fixes the visible image and an upward conveyance part that conveys and ejects the transfer material to the internal eject part.