Hp Indigo B.v.

Maty Verner

Shmuel Borenstain

Doron Schlumm

Boaz Tagansky

Asaf Anufa

Meir Grinstein

Alon Froom

Amit Porat

Measures for controlling an engagement force between a photo imaging plate and a developer roller in a printing device are described. A motor is operated to generate rotational motion. The rotational motion is translated into linear motion. The linear motion causes an adjustment to the engagement force between the developer roller and the photo imaging plate. A characteristic of the motor is monitored. The motor is controlled on the basis of the monitored characteristic in order to maintain a desired engagement force between the developer roller and the photo imaging plate.

Controlling engagement force

In certain examples, a liquid electrophotographic printer has a charge erasing element and a charging element. The charge erasing element at least partially discharges a charged photo imaging plate and a charged layer of liquid toner and the charging element at least partially recharges the layer of liquid toner and the photo imaging plate.

Charging elements in electrophotographic printers

A printing apparatus is described comprising a photoconductor for receiving an electrostatic charge pattern corresponding to an image, and one or more developers for applying a colorant to the photoconductor representative of the image. The apparatus further comprises a transfer member for transferring the image from the photoconductor onto a substrate, wherein the transfer member has a substantially grounded potential.

Grounded intermediate transfer members

Measures for controlling an engagement force between a photo imaging plate () and a developer roller () in a printing device () are described. A motor () is operated to generate rotational motion. The rotational motion is translated into linear motion. The linear motion causes an adjustment to the engagement force between the developer roller and the photo imaging plate. A characteristic of the motor is monitored. The motor is controlled on the basis of the monitored characteristic in order to maintain a desired engagement force between the developer roller and the photo imaging plate.

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Ness Ziona, Israel

Maty Verner