US 10,538,079 B2Granted

Modifying printing based on cross-web distortions

AssigneeHewlett-Packard Development Company, L.P.

InventorsCesar Fernandez Espasa, Santiago Garcia-Reyero Vinas, Jose Galmes

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Abstract

A web press system including a first printbar, a first sensor, a second printbar, a second sensor, and a controller. The first printbar prints first user content on a first side of a web of media. The first sensor senses a pattern on the web of media and provides first sensor data as the first printbar prints the first user content. A second printbar prints second user content on the first side of the web of media. The second sensor senses the pattern on the web of media and provides second sensor data as the second printbar prints the second user content. The controller determines an amount of expansion of the web of media in a direction perpendicular to a web advanced direction based on the first sensor data and the second sensor data and modifies printing performed by the second printbar based on the amount of expansion.

Claims18

Dependent claims

A web press printing system, comprising:

a first printbar to print first user content on a first side of a web of media;
a first sensor positioned on a second side of the web of media downstream of the first printbar to sense a pattern on the second side of the web of media and provide first sensor data;
a second printbar to print second user content on the first side of the web of media;
a second sensor positioned on the second side of the web of media downstream of the second printbar to sense the pattern on the second side of the web of media and provide second sensor data;
a web dryer downstream of the second sensor to dry the web of media;
a third sensor positioned on the second side of the web of media downstream of the web dryer to sense the pattern on the second side of the web of media and provide third sensor data;
and
a controller to determine an amount of expansion and an amount of shrinkage of the web of media in a direction perpendicular to a web advance direction based on the first sensor data, the second sensor data and the third sensor data, and to modify printing performed by the second printbar based on a net amount of the expansion and the shrinkage,
wherein, in the web advance direction, the web of media is to pass, in series, the first printbar, then the first sensor, then the second printbar, then the second sensor, then the web dryer, then the third sensor.

6 more elements

A method of web press printing, comprising:

printing, with a first printbar, first user content on a first side of a web of media;
sensing, with a first sensor positioned on a second side of the web of media downstream of the first printbar, a pattern on the second side of the web of media;
printing, with a second printbar, second user content on the first side of the web of media;
sensing, with a second sensor positioned on the second side of the web of media downstream of the second printbar, the pattern on the second side of the web of media;
drying, with a web dryer downstream of the second sensor, the web of media;
sensing, with a third sensor positioned on the second side of the web of media downstream of the web dryer, the pattern on the second side of the web of media;
determining an amount of expansion and an amount of shrinkage of the web of media in a direction perpendicular to a web advance direction based on data from the first sensor, the second sensor and the third sensor;
and
modifying the printing of the second user content based on a net amount of the expansion and the shrinkage,
in the web advance direction, the web of media passing, in series, the first printbar, then the first sensor, then the second printbar, then the second sensor, then the web dryer, then the third sensor.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/415,408Filed 17 May 2019 · continuation
Published: US 2019/0270303 A15 Sep 2019
Granted: 21 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B41J 11/0022
Curing or drying the ink on the copy materials, e.g. by heating or irradiating: using convection means, e.g. by using a fan for blowing or sucking air
B41F 33/00
Indicating, counting, warning, control or safety devices
B41J 2/2135
Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding: alignment of dots
B41J 2/2146
Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding: for line print heads

Family

PCT/US2013/052982Parent of this continuation · filed 31 Jul 2013
US 2019/0270303 A1Pre-grant publication · published 5 Sep 2019
Application14/907,427Parent of this continuation
US 10,300,689 B2Parent of this continuation
US 2016/0167361 A1Published application
US 10,538,079 B2This patent

From the US filing history. Foreign family members aren’t listed.