Abstract: Methods for forming bound electrophotographic prints are provided. In one aspect a method comprises the steps of applying a toner to a receiver to form a toner image with having toner in a binding area and in an image area. The binding area is proximate to a binding edge of the receiver and the image area that is separated from the binding area by an separation area. The toner image is fused to form a print, and a sheet and the prints are stacked with the toner in the binding area of the print confronting the sheet along a binding edge of the sheet. Heat is applied at the binding edges to cause the toner in the binding area to fuse for a second time. A residual portion of the applied heat heats the separation area but the separation area does not heat the image area to an extent sufficient to fuse toner in the image area.
Type:
Grant
Filed:
May 24, 2010
Date of Patent:
November 20, 2012
Assignee:
Eastman Kodak Company
Inventors:
Brian J. Kwarta, James D. Shifley, Donald S. Rimai, Thomas N. Tombs
Abstract: Methods for forming bound electrophotographic prints are provided. In one aspect a method comprises the steps of applying a toner to a receiver to form a toner image with having toner in a binding area and in an image area. The binding area is proximate to a binding edge of the receiver and the image area that is separated from the binding area by an separation area. The toner image is fused to form a print, and a sheet and the prints are stacked with the toner in the binding area of the print confronting the sheet along a binding edge of the sheet. Heat is applied at the binding edges to cause the toner in the binding area to fuse for a second time. A residual portion of the applied heat heats the separation area but the separation area does not heat the image area to an extent sufficient to fuse toner in the image area.
Type:
Application
Filed:
May 24, 2010
Publication date:
November 24, 2011
Inventors:
Brian J. Kwarta, James D. Shifley, Donald S. Rimai, Thomas N. Tombs
Abstract: A gloss-imparting method that includes (a) applying heat and pressure to one side of a recording material having an image of toner formed on both sides, and fixing the image to the one side of the recording material; (b) cooling the one side of the recording material; (c) applying heat and pressure to the other side of the recording material, and fixing the image to the other side of the recording material; and (d) cooling the other side of the recording material, in the step (a), the fixing being performed such that a value of exp(?T·tan ?0) will be approximately 0.85 or less, where tan ?0 is a loss tangent of the toner when measured by dynamic viscoelastic measurement at a frequency of approximately 1 rad/sec at approximately the same temperature as a fixing temperature of the step (a), and T is a fixing time in the step (a).
Abstract: Toner images applied on the first-side and on the second-side of a substrate are fixed together by microwaves, by being heated to a final fixing temperature, and that the toner image applied on the first-side is prefixed by microwaves before a toner image on the second-side is applied, with the toner image of the first-side being heated to a prefixing temperature that is lower than the final fixing temperature.