Xerox Corporation

Richard A Schieck

Henry Thomas Kremers

Douglas W Gates

Cornell Juliano

Don S Walker

H William Gray

Heidi M Grenek

Debora Margaret Heiza Litwiller

Bridgette E Rivers

Vincent S Carrozzi

A method for generating a compliance rating for federally mandated accessibility standards for a consumer oriented product is disclosed wherein relevance criteria for at least one provision of said standards has already been defined. The method involves the steps of identifying at least one configuration for the product to rate, determining which rules of the standard are relevant to the identified configuration and generating a list of user functions for the configuration, dividing each of the user task functions intended to be performed into a plurality of sub-tasks, filtering the generated list of tasks as to appropriateness and applicability, and performing each sub-task and rating the performance against the identified relevant standards as defined therein. Lastly, the method involves repeating these steps until all configurations of the product under review have been rated.

Method for generating a rating for assessing accessibility standards compliance

An adjustable skew offset device includes a tapered roll as a paper drive roll and a line contact idler roll which is axially adjustable. With these two rolls forming a nip, paper passing therethrough can be purposely skewed clockwise or counterclockwise and thereby serving either to compensate for any fixed skew offset in the paper path or to null out any skew offset between small and large size papers.

Adjustable skew offset device

A limited drive force prefuser vacuum transport apparatus includes at least two sets of belts entrained around a vacuum plenum to provide a limited drive force on sheets being driven by the vacuum transport apparatus. One set of the belts is deliberately driven at a lower speed than the other of the at least two sets of belts in order to maintain the ability of limited slip of sheets on the vacuum belt transport, thus accommodating speed variations among components of a copier/printer including a photoreceptor, paper transport and fuser.

Vacuum transport apparatus

A method and means for compensating for lateral registration errors in printing machines of the type having a plurality of image processing stations for forming a composite image on an imageable surface which moves relative to the stations. The invention includes monitoring means for determining the angular displacement of the surface from a reference in the process direction to thereby determine the lateral registration error at each of the image processing stations. Actuating means are provided to move the image processing stations laterally relative to the surface to provide lateral registration of the images formed on the surface. The invention may also include means for compensating for process direction registration errors including monitoring means for determining the angular displacement of the surface from a reference in lateral direction at each of the image processing stations and providing means to rotate the image processing stations relative to the surface to provide process direction registration of the images formed on the surface.

Method and means for correcting lateral registration errors

An electrophotographic printing machine in which successive copy sheets are supplied from a supply source thereof. A modular tray which is insertable into the printing machine is arranged to have a stack of copy sheets disposed thereon. When one marginal region of the stack of copy sheets has a greater thickness than the other marginal region the sheets are supported such that at least the opposed marginal regions of the uppermost sheet of the stack of copy sheets are at substantially about the same level while that portion of a majority of the copy sheets with the thicker margin regions is downwardly supported at an acute angle with respect to the surface of the uppermost copy sheet in the stack.

Tilting tray for feeding and stacking specialized forms

A printing apparatus includes a copy sheet skew adjustment device. The copy sheet adjustment device is a pivotable baffle positioned between transfer and copy sheet registration stations of the printer and hinged at one end. At the other end, the baffle is connected to a screw and a nut such that when the nut is rotated it pivots the baffle further either into or out of the path of the copy sheets. This shortens or lengthens the distance the copy sheets have to travel to the transfer station and in doing so skews the copy sheets to the proper alignment.

Copy sheet skew adjustment device

In a document feeder for a copier with a stationary copying platen, having a document transport tray system movable towards and away from the copying platen for transporting original documents to the platen for copying by movement of the document transport over the platen from a position adjacent the platen, wherein the improvement includes one or more unidirectional document holding wheels engageable and disengageable by the movement of the document transport for holding the original documents against the platen in position for copying, and a document ejecting wiper connected to and movable with the document transport for wiping across the platen to thereby remove documents on the platen and for pushing those removed documents off of only one side of the platen while further documents are being transported onto the platen by the document transport, and while the holding wheels are disengaged, with the movement of the document transport towards the platen, the wiper and document transport being adapted to prevent the wiper from engaging those further documents being transported onto the platen by the document transport.

Document handling device

In a copier with a copy sheet output slitter for slitting the copy sheets outputted by the copier into a selected plural number of smaller sub-sheets cut in the direction of movement of the outputted copy sheets, and wherein the output slitter also optionally provides uncut copy sheet output, and provides a transport path for both cut and uncut copy sheet output, the improvement wherein the output slitter comprises a plurality of first generally cylindrical metal rollers rotatably driven on a first shaft and a second plurality of generally cylindrical metal rollers on a second shaft parallel to and spaced from the first shaft, the spacing and the diameters of these rollers being such that the first rollers interdigitate the second rollers, the first and second rollers having sharpened opposing radial end surfaces selectively forming paper slitting shears therebetween by end-abutting selected ones, or none, of the first and second rollers by selective movement of rollers along the axis of at least one of the shafts relative to other rollers on the other shaft to selectively form a selected number of, or no, paper slitting shears in the output path of the copier to provide a selected number of, or no, cut sub-sheets. Spring-loading provides a preset and self-adjusting abutment force between end-abutting rollers sufficient to provide the selected paper slitting and also self-sharpening. The rollers also assist in the copy sheet output transport by non-cutting engagement of their generally cylindrical surfaces with the copy sheets, preferably assisted by opposing engaging resilient frictional wheels.

Plural mode copy sheet output slitter

A dual purpose document and copy sheet receptacle for reproducing apparatus pivotally mounted at the copy output end of the apparatus and capable of acting as a copy catch tray in a first position or mode of operation and when pivotted to second position as a document catch tray in a second mode of operation. The dual purpose tray provides the reproducing apparatus in a first mode of operation with the ability to copy extra long documents such as fan fold sheets or rolled copy paper onto fan fold paper or rolled copy paper and neatly stacks the fan fold or collects the rolled paper at the output end of the apparatus and in the second mode of operation with the ability to copy extra long single document and catch them in a large catch tray.

Growing community of inventors

Rochester, NY, United States of America

Richard A Schieck