Abstract: A reprographic marking device has two rolls, e.g., a pressure roll and a fuser roll, forming a nip. A drive motor moves the rolls in a continuous back and forth lateral motion to change the position of the rolls relative to a paper sheet passing through the nip.

Abstract: A print job processing method at least includes: providing processing attributes for particular print stock, including a predetermined fuser dwell time; establishing a print job, including the stock to be used for each page of the print job; for each page in the print job, selecting the appropriate subsystem containing the stock specified for the particular page; for each page in the print job, transferring image substance to each sheet to be printed, the placement of the image substance corresponding to an image to be duplicated on the page; matching the appropriate portion of the processing attributes to each subsystem; for each page, automatically fusing the image substance to the page according to the dwell time established by the processing attributes for the stock used for the page; and outputting processed pages.

Abstract: By controlling all motors so that they all decelerate at substantially the same rate, buckling of media in a media handling system is substantially eliminated on shutdown. Preferably, the deceleration rate of the highest inertia motor is used as the common deceleration rate.

Abstract: By controlling all motors so that they all decelerate at substantially the same rate, buckling of media in a media handling system is substantially eliminated on shutdown. Preferably, the deceleration rate of the highest inertia motor is used as the common deceleration rate.

Abstract: A method and apparatus for determining and correcting registration skew in an image is presented. In the method and apparatus according to this invention, problems in registration, such as misalignment of images and incorrect registration with a receiving substrate are reduced or eliminated. According to this invention, an addition of a second sensor at the transfer end of the photoreceptor belt and the inclusion of a dynamic skew controller will help solve this problem for the lateral direction registration errors. To this end, this invention provides an image processing device embodied as the dynamic skew controller with an additional belt sensor mounted at the transfer end of the photoreceptor module and a microcontroller to measure and calculate the required adjustments. Based on the calculations, the lateral position of images and substrates are adjusted, thus eliminating lateral dynamic registration errors.

Abstract: A sensing and a control system are disclosed for eliminating registration error during duplex printing in a multi-pass xerographic printing system. The system registers a common physical edge of a sheet using multiple pairs of sensors. During the first pass or simplex pass, a first set of sensors detect the leading edge of a sheet of paper, and during the second pass or duplex pass, a second set of sensors detect the trailing edge of a sheet of paper. The control system regulates the rate at which a sheet should be driven to be in timed registration with a developed image on a photoreceptor at a transfer station. Variations in sheet size due to sheet cut tolerances are eliminated by the sensing and the control system since any offset is directed towards a common physical edge when developed front and back images on a photoreceptor are registered with a sheet of paper.

Abstract: In a reproduction system in which a reproduction apparatus with an output of printed sheets at a sheet output position (usually edge registered) is operatively connected to an output sheet processing apparatus having a sheet input position (usually center registered) for sequentially receiving and processing the printed sheets, a lateral alignment system is provided for laterally aligning the sheet input position of the output sheet processing apparatus directly with the sheet output position of the reproduction apparatus without an intermediate sheet transport. The lateral alignment is preferably with a universal interconnect and transporter module or unit adapted to support and transport various different sheet processing apparatus.

Abstract: An apparatus which delivers to an operator offset batches of sheets reproduced from at least one set of documents. The operator selects the number of sheets or sets of sheets successive batches to be offset from one another. In this way, the number of copy sheets in the batch may range from a partial set of copy sheets to multiple sets of copy sheet. Also, the operator may select no offset within a job providing a straight stack with no distinction between batches or sets.

Abstract: An apparatus which adhesively binds a set of sheets by applying a strip having an adhesive on one surface thereof to the spine of the set. The strip is supported on a heated platen which softens the adhesive. The spine of the set of copy sheets is pressed into the adhesive on the strip. The depth of penetration of the spine into the adhesive is controlled so as to form a layer of adhesive between the spine and the strip having a predetermined thickness. As the spine of the set of copy sheets is moved into contact with the adhesive on the strip, it is damped to absorb a substantial portion of the kinetic energy of the set of sheets to reduce the deflection and distortion of the set of sheets.

Abstract: An apparatus which determines the location of an edge of an advancing sheet and discriminates between a hole therein. After the leading edge of the sheet is detected and the sheet has moved a first predetermined distance, the absence or presence of the sheet is sensed for a second predetermined distance. If the sheet is not detected as it moves the second predetermined distance, the control logic indicates that the trailing edge has been detected. In the event the sheet is sensed, the control logic indicates that a hole has been detected and the process is repeated to locate the trailing edge.

Abstract: A device which brakes a drive motor having a rotor adapted to be axially displaced when the motor winding is de-energized. A braking member moves with the rotor so that when the motor winding is deenergized, the circumferential surface of the braking member engages the stationary member to frictionally stop the rotation of the rotor. When the braking member engages the stationary member, the exterior circumferential surface thereof pivots to position substantially the entire surface of the exterior circumferential surface in contact with the stationary member. Energization of the motor moves the braking member with the rotor away from the stationary member and the exterior surface of the braking member pivots to disengage from the stationary member enabling the rotor to rotate.

Abstract: A copier capable of producing simplex and duplex copies includes a tri-roll inverter that employs a corrugation roll on roll return force applicator located downstream of and off line from the input nip of the tri-roll input/output members. A sheet driven by the input nip into the inverter is corrugated as it penetrates the roll on roll return force applicator nip. When the last portion of the sheet is driven into the return force applicator nip, the friction return force of the nip will cause the sheet to drive into a foam roll which delivers the sheet to the output nip.