Ink jet printing system and drum therefore

Details Ink jet printing system and drum therefore Ink jet printing system and drum therefore

B - Operations, Transporting

41

J

101/96.0219

B41J 2/01 (2006.01) B41F 17/20 (2006.01) B41J 11/00 (2006.01) G01D 15/28 (2006.01)

Patent

CA 1289812

INK JET PRINTING SYSTEM AND DRUM THEREFORE ABSTRACT OF THE DISCLOSURE An ink jet printing system has a low aspect ratio cylindrical drum adapted to support a sheet of material to be printed by a computer controlled printing head of a plurality of pigmented inks. The drum is pre- ferably of approximately the same diameter as its axial length, is made up of at least two spoked wheel assem- blies consisting of several arcuate wheel segment sub- assemblies that are joined together and held in place by a corregated skin covered with a fibreglass layup to pro- vide a smooth cylindrical surface onto which the sheet material is spread. A clamping device is provided for tensioning the sheet material as it is rotated past a carriage carrying the printing head and affording two relative movement directions as between the printing head and the sheet to be printed for these differently colored printing inks,

564072

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