Xerox Corporation

Other

Thomas W Morgan

Timothy T Blair

Charles A Gage

Robert J Lang

Ernest L DiNatale

Frank R Walsh

A positively closing nozzle and method of its use in underground irrigation wherein the nozzle is elongated with inlet means at one end and positively closing means at the other end opened by water pressure applied to the nozzle, one or more nozzle being arranged underground in a selected pattern for irrigating plants or the like, the valve being operated by water pressure for producing a circumferential flow pattern of irrigation, the flow pattern being adjustable either by means of a spring-load or flow emitter means in the nozzle.

Positively closing nozzle and method of use in underground irrigation

A manipulable device for projecting a horizontally-extending straight square edged light bar images upon a paper work sheet to facilitate the pasting of small adhesively-waxed printed pieces or strips to be placed upon a paper work sheet lying upon the base support of the device. The selected locations are determined and effected by relative fore and aft adjustment between a light bar projecting fixture and its base support with the work sheet thereon. Since procedure of pasting up of printed pieces upon a layout sheet can be done without the usual T-square and triangle, both hands are left free to carry out the pasting operation. Vertical guides are effected as vertical interferences of the projecting light rays and registerable upon the layout sheet along with the horizontally-extended light bar. Vertical and horizontal measuring rulers are provided upon the layout sheet base support to which reference can be made when locating the projected straight edge light bar upon the layout sheet.

Light square projector for use in pasting adhesively-waxed printed

A system for setting or adjusting the proper registration position of the original document in a copier having a document feeder providing a variable document registration position on the platen, and numeric data key entries programmable in specialized diagnostic modes, and non-volatile memory. The system involves registering and copying a test sheet using the document feeder in its initial, unadjusted, registration setting. The test sheet has a test pattern of registration position indicia with identifying numeric indicia, and also having a registration window at an optically reversed position on the test sheet from the test pattern and a cursor pointing to a specific position within the window. The test sheet is laid over a same-size copy of the test sheet, with the sheet edges aligned, but with the two sheets rotated by 180 degrees relative to one another, so that the copy of the test pattern on the copy sheet underlies and is visible through the registration window of the test sheet, whereby the cursor on the test sheet points to a specific registration identifying numeric indicia within the test pattern copy. By activating a selected diagnostics mode of the copier and then entering the identifying numeric indicia into the numeric data key entries of the copier the copier automatically resets in non-volatile memory the registration position of the document feeder by a preprogrammed distance corresponding to the entered numeric indicia.

Copier/document handler customer variable registration system

Electrostatographic apparatus and method for transferring charged toner present in an image configuration on an insulating layer bearing an electrostatic latent image are illustrated. The technique involves forming a sandwich comprising the insulating layer with a conductive substrate bearing a toner image on its surface, a copy substrate, a dielectric layer, and a conductive electrode together with means for applying a potential to the conductive electrode after the sandwich is formed, the potential being of a magnitude sufficient to create an electric field to transfer toner from the insulating layer to the copy substrate. The apparatus also includes means to discharge the electrostatic latent image on the insulating layer before separation of the sandwich and means to strip the copy substrate from the dielectric layer while the field is applied to provide a toner image on the copy substrate. In a preferred embodiment the conductive electrode comprises a cyclindrical roll having a circumference at least equal to the length of the image on the insulating layer, and the sandwich is formed by wrapping a photoconductive insulating layer bearing a toner image in contact with a copy sheet around the roll with the dielectric layer forming a blocking electrode in between the insulating layer and the conductive electrode. During the wrapping step the translucent back of the photoconductive layer is exposed to discharge the electrostatic latent image on the photoconductive layer and once the sandwich is formed it is unwrapped to separate the copy sheet from the dielectric layer.

Toner transferring method and apparatus

Electrostatographic reproducing apparatus comprising a reusable electrostatographic imaging web having an insulating imaging surface positioned between a web supply roll and a web take up roll, each roll being fastened to the end of the web. The web is provided with means to form an electrostatic latent image on the web and develop said image with a toner image. The image is formed and developed on the passage of the web from the supply roll to the take up roll where the web in the toner image therein is brought into contact with a copy sheet and wound around the take up roll during the first cycle of a two cycle imaging process. The apparatus includes a copy substrate entrance plus means to feed the copy substrate along a copy path with a distance along the imaging surface path from the image forming station with lead edge of an image is formed in the imaging surface to the initial line of contact of the imaging surface with the copy substrate being equal to the distance along the copy substrate path in the copy sheet entrance to the initial line of contact with the lead edge of the image on the imaging surface. The copy substrate is wound around the take up roll to form a sandwich comprising the insulating layer and the electrostatic latent image the toner image copy substrate dielectric layer and conductive layer to which a potential is applied after the sandwich has been formed of a magnitude in potential sufficient to create an electric field to transfer toner from the insulating layer to the copy substrate. The electrostatic latent image present on the insulating layer is discharged before the copy substrate is stripped from the dielectric layer.

Electrostatic reproducing machine

Electrostatographic reproducing apparatus comprising a movable imaging surface, transport means to transport the imaging surface along a path past the series of operational processing stations wherein a toner image and copy substrate contact station is provided, and wherein the distance along the imaging surface path from the image forming station where the lead edge of an image is formed on the imaging surface to the initial line of contact of the imaging surface with the copy substrate is equal to the distance along the copy substrate path from the copy sheet entrance to the initial line of contact of the lead edge of the copy substrate with lead edge of the image on the imaging surface. The apparatus further includes means at the beginning of each imaging cycle to simultaneously actuate the movable imaging surface with a copy substrate transport whereby the lead edge of the formed image on the imaging surface and the lead edge of the copy substrate simultaneously arrive at the initial line of contact.

Geometric design reproducing apparatus

Electrostatographic reproducing apparatus comprising a reusable electrostatographic imaging web having an insulating imaging surface positioned between a web supply roll and a web take up roll each roll being fastened to the end of the web. The web is provided with means to form an electrostatic latent image on the web and develop said image with a toner image. The image is formed and developed upon the passage of the web from the supply roll to the take up roll, where the web with the toner image thereon is brought into contact with a copy sheet and wound around the take up roll during the first cycle of a two cycle imaging process. During the second cycle of the imaging process the web is unwound from the take up roll and rewound on the supply roll with the toner image being transferred to the copy substrate, separated from the imaging web, with the web being fully rewound on the web supply roll. In the specific embodiment the web comprises a photoconductive insulating layer which is positively driven from the supply roll in both the supply roll unwind and rewind directions and tension is maintained within the web by means of a spring in the web take up roll. Furthermore, the circumference of the take up roll is at least equal to the length of the developed image on the web.

Growing community of inventors

Macedon, NY, United States of America

Thomas W Morgan