Abstract: Example post-print processing of three dimensional (3D) printed objects are disclosed. An example system includes an energy source to apply energy to a selected portion of an outer surface of a 3D printed object. The energy provided by the energy source is to cause a polymer of the selected portion to melt and reflow. The selected portion and a non-selected portion of the outer surface to form a pattern on the outer surface of the 3D printed object. A controller to direct the energy of the energy source to the selected portion of the outer surface.

Abstract: An electrophotographic printer includes a charge roller in charge-transferring relation to a photoconductive imaging portion. The printer may determine an AC voltage setpoint of the charge roller.

Abstract: Example post-print processing of three dimensional (3D) printed objects are disclosed. An example system includes an energy source to apply energy to a selected portion of an outer surface of a 3D printed object. The energy provided by the energy source is to cause a polymer of the selected portion to melt and reflow. The selected portion and a non-selected portion of the outer surface to form a pattern on the outer surface of the 3D printed object. A controller to direct the energy of the energy source to the selected portion of the outer surface.

Abstract: An electrophotographic printer includes a charge roller in charge-transferring relation to a photoconductive imaging portion. The printer may determine an AC voltage setpoint of the charge roller.

Abstract: A charge roller includes a body having a metal external surface and an inorganic outer resistive coating.

Abstract: A charge roller includes a body having a metal external surface and an inorganic outer resistive coating.

Abstract: A charge roller includes a body having a metal external surface and an inorganic outer resistive coating.

Abstract: A charge roller includes a body having a metal external surface and an inorganic outer resistive coating.

Abstract: An organic photoconductor includes a conductive substrate; a charge generation layer over the conductive substrate; a charge transport layer over the charge generation layer; and an overcoat layer over the charge transport layer. The overcoat layer comprises a cross-linked polyacrylate that includes a charge transport material dispersed therein and a polyhedral oligomeric silsesquioxane.

Abstract: An organic photoconductor includes a conductive substrate; a charge generation layer over the conductive substrate; a charge transport layer over the charge generation layer; and an overcoat layer over the charge transport layer. The overcoat layer comprises a cross-linked polyacrylate that includes a charge transport material dispersed therein and a polyhedral oligomeric silsesquioxane.

Abstract: Organic photoconductors and methods of manufacturing the same are disclosed. An example method to manufacture an organic photoconductor involves applying a liquid solution to a surface of a cylindrically-shaped substrate while rotating the substrate about its axis, the substrate comprising a surface layer and the liquid solution comprising a matrix polymer species and a dopant species dissolved in a solvent. The example method further involves rotating the substrate while the solvent evaporates to provide a substantially evenly distributed seamless residue film comprising the matrix polymer species and the dopant species, and cross-linking the matrix polymer species of the residue film.