The present invention relates to an improved process for the preparation of Levofloxacin hemihydrate by adjusting the moisture content of the solvent to about 12% to about 20% during crystallization. The inverting part has a platform allowing a person to lie on it, a inversion motor to move the platform from horizontal to vertical, a feet anchor which is extendable driven by a leg adjustment motor, thus making the body upside down to stretch the spine. The recorded data is read based on the detected data. The apparatus further includes a convey assistance unit provided near a top portion the stack unit and a saddle stitching unit for forming a predetermined number of paper sheets or the like stacked into a booklet. The internal bypass circuit is installed by accessing a pressurized fluid circuit in the transmission valve body. The DC offset compensation circuit includes a buffer, a low-pass filter, and a comparator.