Hp Indigo B.v.

Hewlett-packard Development Company, L.P.

Roman Katz

David Sabo

Lavi Cohen

Shachar Berger

Sagie Shanun

Alon Froom

Barak Rosenstein

Shai Rahamim

Yehonatan Lugassy

Ilan Ben-Basat

Hay Arbeli

Eyal Elbaz

In one example of the disclosure, a developer system includes a housing and a developer roller. A first electrode and a second electrode are disposed in the housing, the first and second electrodes to create an electrical charge to cause transfer of printing fluid to a developer roller surface. The developer roller is rotatably connected to the housing. The developer includes a surface, a bearing to support and enable rotation of an axle attached to the developer roller, and a plurality of stop pins. The plurality of stop pins are connected to the housing. The stop pins are to support the bearings and to establish target distances between the developer roller surface and the first electrode and second electrodes.

Establishing distances between developer roller surfaces and electrodes

A print agent application assembly cleaning tool is disclosed. The print agent application assembly cleaning tool may include a handle and a flexible blade. The flexible blade may be inserted into a gap between a pair of electrodes of a print agent application assembly. The blade may protrude from a distal end of the handle in a lengthwise direction. The blade may have a width that varies to define a curved profile. The width may reduce and subsequently increase along a length of the blade so as to define a recess in an edge of the blade.

Print agent application assembly cleaning tools

In one example, a sealing system for a developer roller in a liquid electrophotographic printer includes a pair of arcuate seals each with an annular sealing surface to seal one end of the developer roller; a pair of washers each having a low friction surface to contact one of the sealing surfaces; and a pair of retainers each to hold one of the washers flat against the end of the roller.

Anti-friction ring for a developer roller in a liquid electrophotographic printer

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Ness Ziona, Israel

Roman Katz