Method and transport apparatus for pre-fusing toner on a print material
AssigneeEastman Kodak Company
InventorsKnut Behnke, Frank-Michael Morgenweck, Domingo Rohde
Life of this patent
Estimating the term…
Abstract
Transporting print material covered on the front side with toner for back side printing in which the toner is prefused on the front side of the print material by heating the toner over its glass transition temperature prior to returning the print material for back side printing.
Claims15
A method for transporting a print material (2) covered on the front side with toner for printing on the back side, comprising the step of:
- transporting print material (2) through a heater for pre-fusing toner on the front side of the print material (2), and thereafter transporting the print material (2) for printing on the back side thereof wherein said print material (2) covered on the front side with toner is heated to fusing temperature over the toner glass transition temperature, prior to the back printing and the print material (2) is heated after the back side printing only to a lower temperature than the fusing temperature.
A method for transporting a print material (2) covered on the front side with toner for printing on the back side, comprising the step of:
- transporting print material (2) through a heater for pre-fusing toner on the front side of the print material (2) by heating over the toner glass transition temperature, and thereafter transporting the print material (2) for printing on the back side thereof, wherein said toner is heated by a transport belt (1) for the print material (2), said transport belt (1) being heated to different degrees at different locations.
A method for transporting a print material (2) covered on the front side with toner for printing on the back side, comprising the step of:
- transporting print material (2) through a heater for pre-fusing toner on the front side of the print material (2) by heating over the toner glass transition temperature, and thereafter transporting the print material (2) for Printing on the back side thereof, said heating temperature being selectively controlled by measuring said heating of the print material (2), and heat is fed to the print material (2) in a controlled manner on the basis of the heat measurement.
A transport apparatus (4) for transporting print material (2), comprising:
- a transport belt (1), at least one heat source, associated with said transport belt (1), for pre-fusing toner on the front side of print material (2), transported by said transport belt (1) by heating the toner over the toner glass transition temperature before back side printing, and a switch for returning transported print material for back side printing, wherein said at least one heat source includes resistance wires (20) in said transport belt (1).
Dependencies are inferred from the claim text.