Method and device for pre-treatment of a recording medium for an electrophoretic toner transfer

A method for pre-treating a recording medium with a coating substance, the method comprising:

• increasing an energy of a surface of the recording medium to provide a treated surface of the recording medium;
• applying the coating substance onto the treated surface of the recording medium to provide a pre-treated recording medium with a coated surface, the pre-treated recording medium with the coated surface being operable to have a toner-based print image printed thereon using electrophoresis;
• detecting resistance data indicative of a resistance of the pre-treated recording medium orthogonal to the coated surface of the pre-treated recording medium;
• and
• adapting a dimension of the increase of the energy of the surface of the recording medium based on the resistance data.

A printing system, comprising:

• an energizer configured to charge a surface of a recording medium;
• a conditioning group configured to apply a coating substance on the surface of the recording medium having been energized by the energizer to provide a pre-treated recording medium having a coated surface;
• a print group configured to print a print image onto the coated surface of the pre-treated recording medium;
• a sensor configured to determine a resistance of the pre-treated recording medium;
• and
• a controller configured to control the energizer, based on the resistance detected by the sensor, to adjust a charge value at which the energizer charges the surface of the recording medium.