摘要:
A split drives system for a printer in which a single drive motor drives a first belt drive system for the image fusing system and a second and separate belt drive system driving the sheet registration system. This split drives system mechanically isolates the second and separate belt drive system from torque fluctuations in the image fusing system via the first belt drive system driving the image fusing system. Also, the split driving system can isolate torque variations in the driving of the print media fuser from the driving of the print media sheet transport.
摘要:
A shaft mounting and loading arrangement includes a shaft rotatably mounted within a frame of an imaging machine by a pair of spaced mounting bearings. A belt is entrained on the shaft between the bearings. The belt applies a belt load to the shaft along an axially length thereof. Loading is applied to the shaft at locations axially flanking the bearings to counteract deflection of the shaft caused by the belt load applied by the belt.
摘要:
A tuned vibration absorber is mounted on a motor armature of an AC synchronous motor. The tuned vibration absorber provides an anti-resonance which significantly attenuates the 120 Hz angular velocity pertibation of the AC motor. The tuned vibration absorber has a hub, which attaches to the armature of the AC motor. An inertia ring is connected to the hub via spokes. The spokes and inertia ring provide a torsional resonance to the motor, which attenuates the angular velocity error generated by the AC motor. Due to the reduction in 120 Hz velocity error, the motor can be used in digital printing apparatus with strict motion quality requirements.
摘要:
An imaging module mounting apparatus is provided to improve dynamic performance without creating an overconstraint condition causing misalignment of the imaging module. Three solid mounts are used to establish and maintain critical location datums of the imaging module. A single or plurality of variably flexible mounts are used, depending on the size of the module, to maintain alignment while minimizing any overconstraint condition caused by the imaging module being distorted out of plane due to thermal distortion and/or static distortion of the mounting frame due to movement of the machine. The variably flexible mount is filled with a high-viscosity silicon polymer. Due to the high-viscosity of the medium, the mount does not respond to fast or high-frequency vibration and appears to be a rigid mount with regard to such movement. The mount will react to very low frequency or static distortion such as that caused by movement of the machine and/or thermal distortion and maintain the imaging module in the proper position to prevent perceptible image defects.
摘要:
An apparatus for reducing registration errors in a media handling device. The apparatus including an image-bearing member having sheets individually pass across the image-bearing member. Each sheet pass corresponds to one of a series of iterations between the image-bearing member and the sheets. The image-bearing member is operatively coupled to a controller for regulation motion of the image-bearing member. The controller receives input signals representing at least one measured disturbance. Each disturbance being defined by a pattern of image-bearing member movement away from and substantially returning to a reference state of motion. A repetition of the pattern being coincident with at least one of the iterations, wherein based on the measured disturbance, the reference state and an indication associated with when the pattern will repeat, a modified signal is generated for the actuator to adjust the image-bearing member motion in coordination with the indication.
摘要:
A method of creating a structural document may include determining, by a host computing device in a cloud system, a shape of a structural document, determining, by the host computing device, a plurality of dimensions of the structural document, receiving information associated with one or more content items, and causing a graphical representation of the structural document to be displayed at a user computing device. A shape of the graphical representation may correspond to the determined shape, a plurality of dimensions of the graphical representation may correspond to the determined plurality of dimensions, and the graphical representation may include at least a portion of the received content items. The method may include receiving an indication that a user is finished creating the structural document, generating a print document including an encoded data mark, and providing the print document to one or more print-related devices.
摘要:
A method of creating a structural document may include determining a shape of a structural document, determining a plurality of dimensions of the structural document, receiving information associated with one or more content items, identifying one or more security features associated with the structural document and causing a graphical representation of the structural document to be displayed at a user computing device. A shape of the graphical representation may correspond to the determined shape, a plurality of dimensions of the graphical representation may be representative of the determined plurality of dimensions, and the graphical representation may include at least a portion of the received content items and at least a portion of the identified security features. The method may include receiving an indication that a user is finished creating the structural document, generating a print document including an encoded data mark, and providing the print document to print-related devices.
摘要:
A xerographic marking device includes a media transport path and at least one two-color image-on-image (IOI) drum module. Each two-color IOI drum module includes in a process order around a photoreceptor: a) a first charging unit; b) a first exposure unit; c) a first development unit; d) a second charging unit; e) a second exposure unit; and f) a second development unit, wherein the intermediate transfer unit receives a first toned image and a second toned image from the photoreceptor in a single transfer and transfers those toner images to print media to produce a toned image on print media. In various embodiments, the xerographic marking device is modular and includes a common paper transport module having a cavity and a marking engine sized to fit within the cavity.
摘要:
An electrophotographic device for reproducing an image on an imaging member includes: processing elements for forming a toner-developed latent image on a charge retentive surface of the imaging member; a transfer station for transferring toner from the imaging surface to a second surface of a receiving member; an arrangement for enhancing toner release from the imaging surface, including a resonator in contact with and applying vibratory energy to the imaging member at a location at which toner release is desired having a resonator resonant frequency f.sub.r ; a coupler for coupling the imaging member to the resonator; a driving signal source electrically coupled to the resonator, and producing a driving signal selected to drive the resonator at frequency f.sub.r ; the imaging member, coupler and receiving member together defining a system having a first and second belt resonant frequency (f.sub.b1 and f.sub.b2, respectively) when excited by the toner release enhancer; and the belt resonant frequencies and the resonator resonant frequency selected so thatf.sub.r =(.sup.f b1+.sup.f b2)/.sub.2
摘要:
A single pass ROS system provides a plurality of latent images which may subsequently be developed in different colors. The ROS units are initially aligned so that each color image is precisely registered at the same relative position along the exposed area of a photoreceptor belt. The alignment is accomplished by forming a pair of opposed alignment apertures in the surface of the belt and detecting coincidence or lack of coincidence of signals generated by the beginning and end of each scan line. The skew correction is enabled by rotating an optical component in the ROS system to create the required rotation of the projected scan line so as to correct for the detected skew error caused primarily by belt conicity. Once the initial X and Y-axis alignments are complete, subsequent alignment is maintained through subsequent passes by checking the positions of the previously identified pixels as they advance past additional lead edge apertures formed in the process direction along the belt surface.