Process and device for warming up printing material and/or toner

US6686573B2 · kind B2 · utility

Assignee

• NexPress Solutions LLC · US

Inventors

• Knut Behnke · Kiel, DE
• Hans-Otto Krause · Neviges, DE
• Frank-Michael Morgenweck · Molfsee, DE
• Domingo Rohde · Kiel, DE
• Detlef Schulze-Hagenest · Molfsee, DE
• Gerhard Bartscher · Cologne, DE
• Kai-Uwe Preissig · Dortmund, DE
• Dinesh Tyagi · Fairport, US

Key dates

• Filing date: Dec 4, 2001
• Grant date: Feb 3, 2004
• Expiry date: Apr 17, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G15/2007
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A process or device for fusing toner on a carrier or a printing material, particularly a sheet-type printing material, preferably for a digital printer, wherein the printing material with the toner is irradiated with microwaves from at least one microwave conductor, which is heated to melt the toner and a toner is used which shows a sharp drop of the elastic modulus G&#8242; from its hard state to its liquid state when heated. The ratio of the value of the elastic modulus G&#8242; of the toner is the reference temperature value calculated from the initial temperature at the beginning of the glass transition of the toner plus 50&deg; C. to the value of the elastic modulus G&#8242; at the initial temperature is <10&#8722;5.