Xerox Corporation

Mark Petrush

Mark A Scheuer

William H Hollenbaugh, Jr

Kip L Jugle

James A Winters

John J Ianni

Julia A Kohlmeier

Jeffrey McEwen

David Mark Kerxhalli

Thomas M Baretsky

James W Stevens

Steven Robert LeRoy

Anne Fitzpatrick

Wayne A Morganti

Rod Stair

According to embodiments illustrated herein, there is provided a black toner having a resin, an optional additive, and at least two or more colored pigments, and the at least two or more colored pigments are selected from the group consisting of a blue pigment, a green pigment, a red pigment, a magenta pigment, a cyan pigment, a yellow pigment, a white pigment, and mixtures thereof, and the black toner has a colorimetric value L* of about less than 30.

Methods for making customized black toners

A kit used in TC measurement in the field includes a sandwich of 3 screens used for filtration of carrier beads from toner particles within a container. An upper 400 mesh screen has die-cut holes around its edges to allow removal of any beads trapped between the upper screen and a middle 500 mesh screen. A bottom screen of coarse 20 mesh material is used for strength to support the other screens. When a vacuum source connected to a bottom portion of the container is turned ON, the carrier beads approach the screens in the center of the container. The recirculating airflow carries the carrier beads away from the upper screen at the edges. Thus, with the upper screen being die-cut with openings around its edges, these openings allow the trapped beads to return to the inner chamber of the container for removal during cleaning.

Screen configuration for use in a toner concentration field measurement tool

According to embodiments illustrated herein, there is provided a black toner having a resin, an optional additive, and at least two or more colored pigments, and the at least two or more colored pigments are selected from the group consisting of a blue pigment, a green pigment, a red pigment, a magenta pigment, a cyan pigment, a yellow pigment, a white pigment, and mixtures thereof, and the black toner has a calorimetric value L* of about less than 30.

A tool used in the TC measurement in the field includes a venturi shaped container that when connected to vacuum pressure from a portable vacuum cleaner takes advantage of cyclone separator functionality to assist in separation of fine toner from carrier beads with the toner being caught in the vacuum cleaner and the carrier beads being caught by a plurality of screens covering an opening in the bottom of the container.

Toner concentration field measurement tool

A system and method for determining a color separation registration error in a multi-color printing system are provided. The system and method provide for instructing first and second color separations to mark a substrate with first and second fine-periodic-patch images to determine color separation registration error(s). The system and method further provide for determining whether at least an about half-period color separation registration error exists between the first and second color separations.

System and method for determining and correcting color separation registration errors in a multi-color printing system

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Webster, NY, United States of America

Mark Petrush