Electrophotographic printers having spatial self-compensation for image cylinder runout
AssigneeEastman Kodak Company
InventorTimothy John Young
Life of this patent
Estimating the term…
Abstract
An image forming device includes at least two image cylinders that rotate with a time varying velocity; at least two image cylinder gears respectively attached to each image cylinder; and at least one pinion gear that drives the at least two image cylinder gears. The time varying velocity of the image cylinder gear is due to a runout of the pinion gear. The spacing between the centers of the image cylinders is determined by S 12 = k π D p + α 360 π D p where S12 is the distance between the centers of the two image cylinders gears; k is an integer; α is the angle between the pitch point of the two gears; and Dp is the diameter of the pinion gear.
Claims6
An image forming device comprising:
- at least two image cylinders that rotate with a time varying velocity;
- at least two image cylinder gears respectively attached to each image cylinder;
- and
- at least one pinion gear that drives the at least two image cylinder gears;
- wherein the time varying velocity of the image cylinder gear is due to a runout of the pinion gear;
- wherein the spacing between the centers of the image cylinders is determined by
- S
- 12
- =
- k
-
-
- π
-
-
- D
- p
- +
- α
- 360
-
- π
-
-
- D
- p
- where S12 is the distance between the centers of the two image cylinders gears;
- k is an integer;
- α is the angle between the pitch point of the two gears;
- and Dp is the pitch the diameter of the pinion gear.
Dependencies are inferred from the claim text.