Method and system for wide format toning
AssigneeEastman Kodak Company
InventorsMichael W. Frauens, Eric C. Stelter, Joseph E. Guth, Laverne N. Lincoln, Jr.
Life of this patent
Estimating the term…
Abstract
A printer or other powder deposition device may include multiple toning stations, and the toning stations may be positioned in various configurations within the device. The various configurations may position the toning stations so as to increase the toning width of the device, thereby allowing the device to print larger process widths. The device may also perform processing control for the multiple toning stations.
Claims18
A method for process control in a printer having multiple sets of overlapping toning stations, the method comprising:
- biasing a first set of overlapping toning stations;
- biasing a second set of overlapping toning stations to deposit a smaller amount of toner than the first set of overlapping toning stations;
- measuring an amount of toner deposited by each toning station in the first set of overlapping toning stations;
- and
- adjusting a bias of at least one toning station in the first set of overlapping toning stations so as to approximately equalize respective amounts of toner deposited by each toning station in the first set of overlapping toning stations.
A method for dynamic process control in a powder deposition device having multiple sets of toning applicators, the method comprising:
- biasing a first set of toning applicators;
- biasing a second set of toning applicators to deposit a smaller amount of toner than the first set of toning applicators;
- measuring an amount of toner deposited by the first set of toning applicators relative to an amount of toner deposited by the second set of toning applicators;
- and
- adjusting the amount of toner deposited by the first set of toning applicators relative to the amount of toner deposited by the second set of toning applicators.
A method for process control in a printer having multiple sets of toning applicators providing an increased process width, the method comprising:
- biasing a first set of toning applicators;
- biasing a second set of toning applicators to deposit a smaller amount of toner than the first set of toning applicators;
- measuring an amount of toner deposited by each toning applicator in the first set of toning applicators;
- and
- adjusting a bias of at least one toning applicator in the first set of toning applicators so as to approximately equalize respective amounts of toner deposited by each toning applicator in the first set of toning applicators.
A method for process control in a printer having multiple sets of overlapping toning stations, the method comprising the steps of.
- positioning a first set of overlapping toning stations comprising a first toning roller and a first rotating magnetic core for forming a magnetic brush, wherein the first set is positioned with a long axis of the respective toning rollers, substantially perpendicular to a receiver transport path and offset a distance, to deposit a measured amount of toner for printing on a first area of a print medium receiver;
- positioning a second set of overlapping toning stations comprising a second toning roller and a second rotating magnetic core for forming a magnetic brush, wherein the second set is positioned with a long axis of the respective toning rollers, substantially perpendicular to a receiver transport path and offset a distance, to deposit a measured amount of toner both in an extended width area and the same area relative to the first set of overlapping toning stations for printing on a second area of a print medium receiver;
- measuring an amount of toner deposited by each toning station in the first set of overlapping toning stations;
- and
- adjusting the electric bias of at least one toning station in the first set of overlapping toning stations so as to approximately equalize respective amounts of toner deposited by each toning station in the first set of overlapping toning stations print medium receiver while the respective magnetic brushes are in contact with a receiver.
Dependencies are inferred from the claim text.