Hp Indigo B.v.

Hewlett-packard Development Company, L.P.

Eviatar Golan

Guy Nesher

Sasi Moalem

Fernanda Orlik

Reut Diamant

Mirit Shitrit

Maxim Shlimovich

Noam Meyuhas

An example apparatus for determining dryness of an agent on print media includes an infrared prism, a source of infrared radiation to direct infrared radiation into the infrared prism, and a detector. The infrared prism includes a surface, the surface having an outer side to contact a portion of the agent on the print media, the infrared prism having a refractive index that is higher than a refractive index of the agent. The source of infrared radiation is to direct infrared radiation into the infrared prism and onto an inner side of the surface. The detector is to generate a signal based on infrared radiation reflected by the inner side of the surface to indicate the dryness of the portion of the agent.

Agents on print media

Herein is described a method for assessing primer composition coat weight on a print substrate. The method comprises providing a primed print substrate and spectroscopically analysing the primed print substrate using Fourier transform infrared (FTIR) spectroscopy by attenuated total reflectance (ATR) to produce a FTIR spectrum. A primer peak in the FTIR spectrum characteristic of the primer composition, and a print substrate peak characteristic of the print substrate are then identified and compared to assess the primer coat weight on the print substrate of the primed print substrate.

Assessment of primer content on a print substrate

A method is described in which a spectrum of a surface of a photoconductor member is obtained using optical spectroscopy; and an extent of oxidation of the surface is determined based on the obtained spectrum.

Determining oxidation of photoconductor members based on obtained spectrum from optical spectroscopy

Growing community of inventors

Ness Ziona, Israel

Eviatar Golan