Printing machine inker system

Details Printing machine inker system Printing machine inker system

1988-02-19

1989-02-21

Burr, Edgar S.

Printing

Inkers

Roller

101157, B41J 3106

Patent

active

048055301

ABSTRACT:
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.

REFERENCES:
patent: 1656170 (1928-01-01), Cooper
patent: 3360393 (1967-12-01), Rhorer
patent: 3587463 (1971-06-01), Granger
patent: 4208963 (1980-06-01), Dahlgren
patent: 4428291 (1984-01-01), Dorow
patent: 4527471 (1985-07-01), Dahlgren et al.

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