Abstract: An apparatus for printing recording media or supports in the form of discs, wherein a fusible powder is applied image-wise to an image-forming medium and then transferred to an intermediate medium, the powder image on the intermediate medium then being brought into contact, in a contact zone, with a recording disc, the latter being heated in a preheater before the contact zone to a temperature of at least 60.degree. C., and wherein the intermediate medium in the contact zone is heated to a temperature of at least 100.degree. C.

Abstract: An improved laser module is disclosed wherein a solid state laser is mounted on a laser holder and a lens system is mounted in a lens holder. The lens holder is movable with respect to the laser holder and is provided with a cylindrical part having a first screwthread. To achieve precise focussing of the laser, the laser holder is provided with a cylindrical recess wherein a second screwthread is provided. A cam and groove assembly is also provided in the lens holder and laser holder to prevent rotation of the lens holder. A rotatable intermediate ring is disposed between the first and second screwthreads when viewed radially. This rotatable intermediate ring is provided with an internal screwthread in engagement with the first screwthread and with an external screwthread in engagement with the second screwthread. The pitch of the internal screwthread is slightly different from the pitch of the external screwthread which enables the lens holder to be adjusted more precisely.