Device and method for electrophoretic liquid development

An electrographic printing device, comprising:

• an image generating system that generates an electrical charge image on an image carrier element;
• the electronic charge image being made visible by a developer station via charged ink particles, said image being subsequently transferred onto a final image medium and fixed thereon;
• and
• a speed control which continuously varies speed of the image carrier element from 0 up to a limit speed, adapts charge intensity of the image carrier element to its speed, adapts an exposure intensity for exposure according to the image and in a deletion exposure of the image carrier element to its speed, and keeps a supply of toner to the image carrier element constant per area.

A method for operation of an electrophotographic printing device with variable printing speed using a printing device, comprising the steps of:

• providing an image generating system for generating an electrical charge image on an image carrier element;
• providing a developer station for making the electronic charge image visible via charged ink particles;
• transferring said image onto a final image medium and fixing it thereon;
• providing a speed control;
• and
• with the speed control continuously varying speed of the image carrier element from zero up to a limit speed, adapting charge intensity of the image carrier element to its speed, adapting exposure intensity for exposure according to the image and in a deletion exposure of the image carrier element to its speed, and keeping a supply of toner to the image carrier element constant per area.

An electrographic printing device, comprising:

• an image generating system that generates an electrical charge image on an image carrier element;
• the electronic charge image being made visible by a developer station via charged ink particles, said image being subsequently transferred onto an image medium and fixed thereon;
• and
• a speed control which varies speed of the image carrier element from 0 up to a limit speed, adapts charge intensity of the image carrier element to its speed, adapts an exposure intensity for exposure according to the image and in a deletion exposure of the image carrier element to its speed, and keeps a supply of toner to the image carrier element constant per area.