The present invention provides a method of minimizing absorption of visible light in an ink composition comprising an IR-absorbing metal-dithiolene dye, comprising preselecting said dye such that it includes at least one moiety for reducing intermolecular interactions between adjacent dye molecules. The machine comprises a stepless hydraulic power transmission module and a press and squeeze compression module. The guide part comprises a further joint at the lower end below the center but above the floor part, about which joint the guide part can be adjusted transversely to the treatment direction so that the floor part can be rotated by a user parallel to the treatment surface about a vertical axis of the floor part by at least \xb145\xb0, even if the guide part is in a tilted position. In this configuration, the management area is configured to have marker information independently of the playback order management information. , such that i) G\u2032-\u03c3 is greater than about 200 ; and ii) G\u2032 is from about 104 to about 1010 dynescm2.