Method for operating liquid developer of printing system, involves traversing measuring cell by liquid developer in which alternating electric field is applied and vibrating electrically charged toner particles

摘要

The method involves providing a liquid developer (16) with a carrier liquid, toner particles (13) and charge control agents. The printing system having a measuring cell (10) is traversed by the liquid developer in which an alternating electric field is applied and the electrically charged toner particles are vibrated. A pressure sensor (34) is configured to generate a pressure dependent on the amplitude of the generated wave electrical signal and a charge controlling agent is added depending on the electrical signal to the liquid developer. An independent claim is included for a printing system.