Printing machine inker system

Details Printing machine inker system Printing machine inker system

B - Operations, Transporting

41

F

101/103

B41F 31/10 (2006.01) B41F 31/04 (2006.01) B41F 31/26 (2006.01)

Patent

CA 1299440

ABSTRACT OF THE DISCLOSURE. To permit accurate control of ink being transferred by an ink transfer roller from an ink source (6; 15, 16, 17) to an ink accepting roller (1, 10), the transfer roller (2, 11) has a surface layer (3, 12) which is made of compressible material, the surface layer being formed with shallow cup-like depression in a grid or similar raster pattern. Upon compression and deformation of the depth of the shallow cup-like depressions, the cup-like depressions will change their volume and thus change the quantity of ink being transferred. This also permits direct inking of a forme cylinder (1) by a chamber ink supply arrangement (6) since the hard surface of the forme cylinder will be engaged by the resilient or compressible surface layer (3, 12) of the transfer roller.

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