Stencil printer having ink leakage preventing construction

Details Stencil printer having ink leakage preventing construction Stencil printer having ink leakage preventing construction

1996-07-25

1997-09-23

Burr, Edgar S.

Printing

Stenciling

Rotary machines

101120, B41L 1318

Patent

active

056692986

ABSTRACT:
In a stencil printer having a printing drum 10 which has a circumferential wall portion for mounting a stencil sheet made of a flexible sheet member 20 and including a perforated portion 20c, an inking roller 12 provided inside of the printing drum for supplying ink to the printing drum from its inside with radially shifting out the perforated portion, and a back press roller 14 for supporting a print sheet against the printing drum by holding a leading end of the print sheet by a clamp 25, a means is provided for restricting the radial shifting out of the inking roller 12 when the inking roller is opposed by the clamp 25 to prevent ink leakage from the perforated portion 20c of the printing drum due to insufficient support of the print sheet by the back press roller 14 at the portion of the clamp 25. As an embodiment, an annular cam follower 23 mounted on the inking roller 12 is engaged by a cam 48 mounted on the back press roller.

REFERENCES:
patent: 5243904 (1993-09-01), Hayama et al.

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