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US 9,144,965 B2Granted
Print arrangement
AssigneeHewlett-Packard Industrial Printing Ltd.
InventorsYuval Dim, Yaron Dekel, Yehuda Ben Abu
Life of this patent
Estimating the term…
Abstract
Print arrangement, comprising a first roll, a transport surface, a nip between the first roll and the transport surface through which, at least during printing, a substrate is threaded, a drive system arranged to change a width of the nip, and a lateral stretch member arranged to engage a side of the substrate. The first roll comprises a two coaxially aligned roll segments of similar diameters for rolling over the substrate, with a distance in between.
Claims20
A print arrangement, comprising:
- a first roller;
- a transport surface forming a nip between the transport surface and the first roller, the transport surface to transport a substrate in a moving direction, the substrate to be threaded through the nip;
- lateral stretch members positioned to engage opposite transverse side portions of the substrate, longitudinal axes of the lateral stretch members being non-perpendicular relative to the moving direction to enable a force to be applied to the respective side portions of the substrate in a direction transverse to the moving direction within a plane of the substrate, the lateral stretch members being separately settable between different substrate engagement positions to enable an angle of skewing of the substrate to be adjusted relative to the moving direction, the longitudinal axes of the lateral stretch members being non-parallel relative to a longitudinal axis of the first roller;
- and
- a guide arranged in a transverse direction relative to the moving direction, a first lateral stretch member of the lateral stretch members including a bracket carried by the guide and lateral stretch rollers carried by the bracket to form a side nip between the lateral stretch rollers.
2 more elements
A method to operate a print arrangement, the method comprising:
- operating a transport surface to move a substrate within the print arrangement in a travel direction;
- separately setting lateral stretch members between different substrate engagement positions, the lateral stretch members being positioned to engage opposite transverse side portions of the substrate, longitudinal axes of the lateral stretch members being positioned at a non-perpendicular angle relative to the travel direction to apply a transverse force to the respective side portions of the substrate in a direction transverse to the travel direction and within a plane of the substrate;
- and
- operating the lateral stretch members concurrently with operation of the transport surface to adjust an angle of skewing of the substrate relative to the travel direction as the substrate moves.
1 more element
Dependencies are inferred from the claim text.