Hewlett-packard Development Company, L.p.

Josep Maria Bel Calavia

Antonio Gracia Verdugo

Andreu Vinets Alonso

Ignasi Bonjoch Roma

Andrei Alexandru Dafinoiu

Oscar Moya Rojo

In example implementations, a method, a device, and a program are provided. The method includes detecting a power increase movement of a printer carriage. A location of the printer carriage is detected at a time of the detected power increase. Based on the detected location of the printer carriage, determine whether the print medium is damaged. The device includes a power monitor to detect a power increase during movement of a printer carriage. A locator detects a location of the printer carriage at the time of the detected power increase. A damage determiner determines, based on the detected location of the printer carriage, whether the print medium is damaged. The program detects a power increase during movement of a printer carriage. Location of printer carriage is detected at time of detected power increase. Based on detected location of the printer carriage, it is determined whether the print medium is damaged.

Printing error detection

A system () is provided having a printer () to print printing liquid onto a web () of media (). The system () has a winding roller () on which to roll the web () of media () after printing. A tensioner () to vary the tension in a portion () of the web () of media () is also provided. The portion () is a portion of web which is being rolled onto the winding roller (). Also provided is controller () to control the tensioner () to vary the tension based on the time taken for the printed printing liquid on the web () of media () to dry.

Variable web tensioning

An example method comprises operating a drive unit to advance a substrate in a substrate advance direction toward a printing station. At the printing station, a first line is printed onto the substrate. A drive unit is instructed to advance the substrate in the substrate advance direction by a target amount, and a second line is printed onto the substrate. The distance between the first and second lines in a direction perpendicular to the substrate advance direction is calculated and, based on the calculated difference, a tension of the substrate is modified.

Adjusting tension of a substrate

A method to advance a print medium, for example a flexible print medium, through a print zone of a printing device is described. A carrier is fed from a carrier supply. The carrier has an adhesive surface. A print medium is engaged with the adhesive surface of the carrier. The carrier with the engaged print medium is advanced to the print zone.

Method and device for reducing distortion while printing on a flexible print medium

Examples relate to a method to print a print job. The method comprise comparing an operational parameter of the print job with a reference operational parameter and determining to perform a maintenance task during the print job based on at least a result of comparing the operational parameter with the reference operational parameter. If the maintenance task is to be performed, the method further comprises determining a safety area on a printable medium and performing a maintenance task on a printable medium.

Safety zone for a maintenance task

There is disclosed a device, method and program, wherein the method comprises detecting a power increase, during which power usage increases by at least a threshold amount over an expected power usage during movement of a printer carriage over a print medium along a scan axis. The increase method further comprises detecting a location of the printer carriage at a time of the detected power usage increase and determining, based on the detected location of the printer carriage, whether the print medium is damaged.

A printing fluid collector is described. In one example, the collector comprises a conveying mechanism for collecting printing fluid ejected from a printing fluid dispenser, and a connecting means for connecting the conveying mechanism to a printing system in an orientation such that the conveying mechanism is to collect printing fluid ejected from the printing fluid dispenser and convey the printing fluid in a direction which is substantially perpendicular to a direction of movement of a print medium along a print medium path.

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Sant Cugat del Valles, Spain

Josep Maria Bel Calavia