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An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system including a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component,

An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system including a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component, a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component, and a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner. The additive manufacturing system also includes a plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state.

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1. An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising: a rotatable photoconductor component having a surface;a development station configured to develop layers of a material on the surface of the rotatable pho

1. An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising: a rotatable photoconductor component having a surface;a development station configured to develop layers of a material on the surface of the rotatable photoconductor component;a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component;a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner to print the three-dimensional part from at least a portion of the received layers from the rotatable transfer medium; anda plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state. 2. The additive manufacturing system of claim 1, wherein the different line speeds comprise a first constant rate line speed and a second intermittent line speed. 3. The additive manufacturing system of claim 1, wherein at least one of the plurality of service loops comprises: a first roller assembly configured to move a first portion of the portions of the rotatable transfer medium at a first line speed; anda second roller assembly configured to move a second portion of the portions of the rotatable transfer medium at a second line speed that is different from the first line speed. 4. The additive manufacturing system of claim 1, and further comprising a transfusion plate configured to operate with the platen to transfer the developed layers from the rotatable transfer medium to the platen. 5. The additive manufacturing system of claim 1, and further comprising a chamber at least partially enclosing the platen and at least a portion of the rotatable transfer medium, wherein the chamber is configured to be heated to one or more temperatures. 6. The additive manufacturing system of claim 5, and further comprising a cooling unit configured to blow localized cooling air to at least a portion of the received layers on the platen. 7. The additive manufacturing system of claim 1, and further comprising a second development station configured to develop layers of a second material on the surface of the rotatable photoconductor component not overlapping with the developed first layer, wherein the rotatable transfer medium is further configured to receive the developed layers of the second material from the surface of the rotatable photoconductor component, and wherein the platen is further configured to receive the developed layers of the second material from the rotatable transfer medium in a layer-by-layer manner. 8. The additive manufacturing system of claim 1, and further comprising: a second rotatable photoconductor component having a second surface; anda second development station configured to develop layers of a second material on the second surface, wherein the rotatable transfer medium is further configured to receive the developed layers of the second material from the second surface, and wherein the platen is configured to receive the developed layers of the second material from the rotatable transfer medium in a layer-by-layer manner. 9. The additive manufacturing system of claim 1, wherein the additive manufacturing system is configured to print the three-dimensional part at a rate of at least about 40 layers per minutes. 10. An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising: a rotatable photoconductor component having a surface configured to receive layers of at least one material using electrophotography;a rotatable transfer medium configured to travel through a first region to receive the layers from the rotatable photoconductor component, and further configured to travel through a second region to transfer the received layers;a platen configured to receive the transferred layers from the rotatable transfer medium in the second region in a layer-by-layer manner to print the three-dimensional part from at least a portion of the received layers from the rotatable transfer medium; anda plurality of service loops configured to move a first portion of the rotatable transfer medium through the first region at a constant rate line speed, and further configured to move a second portion of the rotatable transfer medium through the second region at an intermittent line speed. 11. The additive manufacturing system of claim 10, wherein a first service loop of the plurality of service loops comprises: a first roller assembly configured to move the first portion of the rotatable transfer medium at the constant rate line speed; anda second roller assembly located downstream from the first roller assembly in a direction of movement of the rotatable transfer medium, the second roller assembly being configured to move the second portion of the rotatable transfer medium at the intermittent line speed. 12. The additive manufacturing system of claim 11, wherein a second service loop of the plurality of service loops comprises: a third roller assembly configured to move the second portion of the rotatable transfer medium at the intermittent line speed; anda fourth roller assembly located downstream from the third roller assembly in the direction of movement of the rotatable transfer medium, the fourth roller assembly being configured to move the first portion of the rotatable transfer medium at the constant rate line speed. 13. The additive manufacturing system of claim 10, and further comprising a transfusion plate disposed in the second region, and configured to operate with the platen to transfer the developed layers from the rotatable transfer component to the platen. 14. The additive manufacturing system of claim 10, and further comprising at least one tension roller engaged with the rotatable transfer medium. 15. A method for printing a three-dimensional part, the method comprising: rotating a transfer medium such that a first portion of the transfer medium in a first region moves at a first line speed, and such that a second portion of the transfer medium moves at a second line speed that is different from the first line speed;rotating a photoconductor component at a rate that is synchronized with the first line speed;developing layers of the three-dimensional part from a development station onto a surface of the rotating photoconductor component while the photoconductor component is rotating;transferring the developed layers from the rotating photoconductor component to the rotating transfer medium in the first region; andpressing the developed layers between the platen and a transfusion plate to transfer the developed layers from the rotating transfer medium to a platen in the second region. 16. The method of claim 15, wherein the first line speed is a constant rate line speed, and wherein the second line speed is an intermittent line speed. 17. The method of claim 16, wherein rotating the transfer medium maintains a net rotational rate of full rotations of the transfer medium at a substantially steady state. 18. The method of claim 15, wherein rotating the transfer medium comprises: moving the first portion of the transfer medium with a first roller assembly; andmoving the second portion of the transfer medium with a second roller assembly that is downstream from the first roller assembly in a direction of movement of the transfer medium. 19. The method of claim 15, wherein the second line speed comprises pauses during the pressing of the developed layers. 20. The method of claim 19, and further comprising heating the transfusion plate.