Hp Indigo B.v.

Reut Diamant

Sasi Moalem

Boaz Tagansky

Shahar Tal

Kobi Shkuri

Yossi Cohen

Fernanda Orlik

Mirit Shitrit

Eviatar Golan

A cleaning solution is used to at least substantially remove colorant from the photoconductive drum as the photoconductive drum rotates. A wiper wipes the cleaning solution from the photoconductive drum while purposefully maintaining a layer of the cleaning solution on the drum. The wiper has an edge that is purposefully rounded.

Maintaining layer of cleaning solution on photoconductive surface via wiper with purposefully rounded edge

In an example of a method for reducing contamination, a purified imaging oil is formed by filtering an imaging oil through an imaging oil filter, and then filtering the imaging oil through a polar absorbent filter. A surface of an amorphous silicon photoconductor of a liquid electrophotographic printing apparatus is maintained by periodically applying the purified imaging oil to the amorphous silicon photoconductor.

Method and apparatus for reducing contamination in liquid electrophotographic printing

In an example implementation, a method of cleaning a silicon photoconductor includes contacting the silicon photoconductor with a base-peroxide solution, rinsing the silicon photoconductor with a liquid, and heating the silicon photoconductor to evaporate the liquid.

Cleaning a silicon photoconductor

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.

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Ness Ziona, Israel

Reut Diamant