Transactional Lock Elision may allow multiple threads to concurrently execute critical sections as speculative transactions. The apparatus produces the first and second electrical signals such that there is a phase difference between phases of the first and second electrical signals. The process of the received print data is controlled on the basis of the analysis result and setting contents. The cap includes a body for blocking the pipe aperture, the body including a bore having a threaded bore portion. When the current-injected upper electrodes are sequentially switched, a laser light scan is performed in the direction of the array of the upper electrodes. The conveyor includes a housingtrough in which at least two chain conveyors with strip-shaped driving elements attached thereto rotate, wherein a measuring bridge that is supported on at least one force measuring device is arranged between the inlet and an outlet hole.