Digital printer

Details Digital printer Digital printer

1996-10-31

1998-12-01

Bennett, Christopher A.

Printing

Planographic

Multicolor

101183, 101216, 101177, 101152, 101217, B41F 702

Patent

active

058424148

ABSTRACT:
A digital printer of the present invention employs a single laser depress unit. In a prepress process, an impression cylinder is used as a plate retention member for holding four printing plates. Image formation on the four printing plates held on the impression cylinder is achieved by way of the single laser prepress unit disposed adjacent to the periphery of the impression cylinder. The printing plates thus prepressed are transported from the impression cylinder to plate cylinders. After the printing plates are mounted on the plate cylinders, a printing sheet is fed from a sheet feeding section to the impressing cylinder via a loading unit. Dampening water and color ink is applied to the plate cylinders 17 from dampening water units and inking units, respectively. The various colors of ink are respectively transferred onto blanket cylinders from the plate cylinder, and further transferred from the blanket cylinders onto the printing sheet on the impression cylinder.

REFERENCES:
patent: 3536006 (1970-10-01), Roozee
patent: 5305019 (1994-04-01), Orth et al.
patent: 5469787 (1995-11-01), Turner et al.

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