Radiation unit for a fixation device

US6594465B2 · kind B2 · utility

Assignee

• NexPress Solutions LLC · US

Inventors

• Domingo Rohde · Kiel, DE
• Gerhard Bartscher · Cologne, DE
• Frank-Michael Morgenweck · Molfsee, DE
• Detlef Schulze-Hagenest · Molfsee, DE
• Douglas Kostyk · Hudson, US
• Dinesh Tyagi · Fairport, US

Key dates

• Filing date: Dec 6, 2001
• Grant date: Jul 15, 2003
• Expiry date: Dec 6, 2021

Classification

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

Abstract

A radiation unit for a fixation device for fixation of toner material on a printing stock surface for an electrophotographic printing machine, as well as a method for exposure and fixation of toner material on a printing stock surface. Exposure for fixation of toner material occurs essentially indirectly, i.e., the light emitted by the radiation unit is reflected at least once, so that high uniformity and homogeneity of the radiation, efficient energy utilization and avoidance of adverse changes on the printing stock are achieved. A high-energy density, low housing dimensions and independence of the radiation from the employed printing unit are achieved by the fact that the radiation wavelength lies essentially in the ultraviolet spectral range.