Hp Indigo B.v.

Hewlett-packard Indigo B.v.

Lior Joseph

Itzik Kent

Avihay Menashe

Ilan Meiri

Yoav Landau

Noam Parvin

Erez Kopel

Regev Jekobson

In an example, a rotogravure printer roller is described. The printer roller () comprises a contact surface formed from a plurality of adjacent roller sections (). The roller sections are constructed and arranged to be removably assembled to form the roller.

Rotogravure printing

Example aspects described herein relate to an apparatus for adjusting control parameters of a printing substance for a printing system. Such adjustments may occur in conjunction with a color calibration process of the printing system.

Apparatus for adjusting control parameters of a printing substance for a printing system

Provided is a lay-flat book block production apparatus. The apparatus comprises a glue dispenser, the glue dispenser to transition between an active state in which glue is to be provided to one side of the web which is to be guided past the glue dispenser and an inactive state in which glue is not to be provided to the web which is to be guided past the glue dispenser. The apparatus further comprises a folding unit, wherein the folding unit is to fold the web along a plurality of crease lines wherein each of a plurality of flat portions of a side of the folded web faces another of the plurality of flat portions of a same side.

Lay-flat book production

Sheet length data is received for printed media sheets passed through a printing device. A length difference between the printed media sheets is calculated, and in response to the length difference exceeding a specified threshold, an alignment correction in a finishing device is initiated to align the printed media sheets.

Initiating alignment correction of printed media sheets

In an embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to receive sheet length data for two paper sheets of a same standard dimension passing consecutively through a printing device. The processor calculates a length difference between the two paper sheets, and when the length difference exceeds a two-sheet threshold, it initiates an alignment correction cycle in a paper finishing device.

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Ness Ziona, Israel

Lior Joseph