Hewlett-packard Development Company, L.p.

Hp Indigo B.v.

David Luis Pereira

Dror Kella

Boaz Tagansky

David Herbert Donovan

Dale Dean Timm, Jr

Behnam Bastani

Shilin Guo

Jose Ramos

John A Dangelawicz

Behnam Baslani

In an example implementation, a method of rosette-free printing includes, in a printing device whose color plane misregistration is less than 15 percent of a screen ruling of a halftone screen, printing multiple color planes of a multicolor image using the halftone screen.

Rosette-free printing

Systems and methods for print head calibration. In an exemplary embodiment, the method may include scanning an image on a print media to obtain an optical density profile. The method may also include selecting at least one window in the optical density profile. The method may also include generating an average profile for each window. The method may also include identifying variations in uniformity.

Systems and methods for print head calibration

A method for double-sided printing may include ejecting printing fluid from a fluid ejector to a platen configured to receive print media, the platen supporting a nonabsorbent substrate. In any sequence, a first print media side and a second print media side may be printed by ejecting printing fluid from the fluid ejector to the first print media side, and contacting the second print media side with the nonabsorbent substrate to transfer printing fluid from the nonabsorbent substrate to the second print media side. A method for double-side printing may further include increasing the contact between the second print media side with the nonabsorbent substrate to increase transfer of printing fluid.

Double-sided printing system

Growing community of inventors

San Diego, CA, United States of America

David Luis Pereira