Iris Graphics, Inc.

Robert J Bullock

Jeff Tobin

Adam I Pinard

David A Parker

Scott T Burnett

James D Roberge

A deposited ink drop imposition proofing print sheet that includes two deposited ink drop printable faces each having a periphery defined by an ordered series of first, second, third, and fourth edges. These two faces have properties resulting from a deposited ink drop print-enhancing treatment. The sheet defines two first registration openings. The first is located closer to the first sheet edge than to the third sheet edge and closer to the second sheet edge than to the fourth sheet edge. The second is located closer to the first sheet edge than to the third sheet edge and closer to the fourth sheet edge than to the second sheet edge. In one embodiment, an inner edge of the first registration opening is nominally separated from an inner edge of the second registration opening by at least 36 inches.

Imposition proofing

An imposition printer and associated method. The printer can disengage its rollers from a print substrate feed path, deploy a pair of registration stops, and align a print substrate by engaging the print substrate with the stops. The rollers can then engage the substrate in an aligned position, and the registration stops can be retracted. After they are engaged, the same rollers can advance the substrate as a deposited ink drop print head deposits ink on it.

A printer drum includes a leading edge assembly for holding a first end of a substrate, and a trailing edge assembly for holding a second end of the substrate. The leading edge assembly includes a first plurality of interconnected disks, and the trailing edge assembly includes a second plurality of interconnected disks. The disks of the two assemblies are interleaved such that the disks of the trailing edge assembly are rotatable relative to the disks of the leading edge assembly about the axis of rotation of the drum. A balancing disk is interleaved with the disks. A leading edge clamp interconnects the first plurality of disks, and a trailing edge clamp interconnects the second plurality of disks. A plurality of registration pins of the leading edge clamp selectively engage a substrate held by the clamp.

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Acton, MA, United States of America

Robert J Bullock