Ultraviolet drying apparatus

Ultraviolet radiating means for curing and drying a substrate comprising:

• a housing means, an elongated ultraviolet lamp assembly means for selectively radiating ultraviolet radiation against said substrate, said lamp assembly means including a longitudinal axis, a lamp assembly module, said housing including a chamber therein for receiving said lamp assembly module and including means for supporting said lamp assembly module for slideable movement into and out of said chamber, said lamp assembly module including means for supporting said elongated ultraviolet lamp assembly means for axial slideable movement into and out of said module and for rotation about said axis, and heat exchange means positioned in said module and supported thereby adjacent to said lamp assembly means, said lamp assembly means being rotatable in said module from a drying position wherein said lamp assembly means directs radiation to said substrate to a heat exchange position wherein said lamp assembly means direct radiation to said heat exchange means, and means for rotating said lamp assembly means in said modules from a drying position to a heat exchange position.

Ultraviolet radiating means for curing and drying a substrate comprising:

• a housing means, a plurality of ultraviolet lamp assemblies for selectively radiating ultraviolet radiation against said substrate, a lamp assembly module, said housing including a chamber therein for receiving said lamp assembly module and including means for supporting said lamp assembly module for slideable movement into and out of said chamber, said lamp assembly module including means for supporting said elongated ultraviolet lamp assemblies in parallel side-by-side relation and for axial slideable movement into and out of said module, and heat exchange means positioned in said module and adjacent said lamp assemblies, said lamp assemblies being rotatable in said module from a drying position wherein said lamps direct radiation to said substrate to a heat exchange position wherein said lamp assemblies direct radiation to said heat exchange assemblies, and means for simultaneously rotating each of said lamp assemblies in said modules from a drying position to a heat exchange position, said means including a drive means and a flexible member operably connected to said drive means and wound around each of said lamp assemblies.

Ultraviolet radiating means for curing and drying nonsolvent ink received on a surface of a substrate comprising:

• a plurality of ultraviolet lamp assemblies for selectively focusing and radiating ultraviolet radiation against a portion of said substrate, a support means for rotatably supporting a plurality of said lamp assemblies in parallel relation, said lamp assemblies being supported such that at least two of said assemblies focus radiation on the same portion of said surface of said substrate, heat exchange means supported by said support means adjacent to said lamp assemblies, said lamp assemblies being rotatable from a drying position wherein said lamp assemblies direct radiation to said substrate to a heat exchange position wherein said lamp assemblies direct radiation to said heat exchange means, and means for simultaneously rotating said lamp assemblies, said last stated means including a drive means and a flexible member operably connected to said drive means and wound around each of said lamp assemblies.