R yenqubo yesevisi yefektri ngemuva kokuthengisa okungenani .
2. Ikhwalithi yephrinta ye-UV, lokho ukuqina kokusebenza: Ukuqina kwephrinta ye-UV kuyinto ebalulekile ekuthengeni umkhiqizo we-machines, kepha futhi kuyithuba elihle lokuthi umshini wokuphrinta amakhasimende, kodwa futhi yithuba elihle lokuthi amakhasimende ahlole ukuqina kwe umshini .
