Hp Indigo B.v.

Shahar Tal

Sasi Moalem

Reut Diamant

Kobi Shkuri

Yossi Cohen

Boaz Tagansky

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.

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Ness Ziona, Israel

Shahar Tal