Abstract: An electrostatographic recording apparatus and method includes a primary charger that establishes a uniform electrostatic charge on the image recording member in accordance with a first operating parameter. A recording device that imagewise modulates the charge on the image recording member to form electrostatic images in accordance with a second operating parameter and additionally forms a developable process control patch. A development station develops the electrostatic images and the control patch on the image recording member with toner in accordance with a third operating parameter. A transfer station transfers developed images from the image recording member. The transfer station includes a transfer member and power supply providing to the transfer member a transfer current used for transferring developed images. In one embodiment a sensor senses density of the developed control patch.

Abstract: A camera comprising a main body part having a backframe opening for exposing successive sections of a filmstrip, a metering sprocket rotatably supported on the main body part proximate the backframe opening and having respective teeth that can project through individual perforations in the filmstrip to engage successive sections of the filmstrip at the backframe opening, and a rear cover part having a plurality of parallel film guide ribs longitudinally extending to guide successive sections of the filmstrip over the backframe opening, is characterized in that one of the film guide ribs includes an integral portion configured to at least partially surround the teeth of the metering sprocket one at a time, in a predetermined location at which each tooth projects from one of the perforations in the filmstrip, to retain a film section at the backframe opening in engagement with the tooth.

Abstract: This invention relates to a method of preventing fog formation in a silver halide photographic element, said method comprising bringing a silver halide developer solution, or a solution preceding a silver halide developer solution, into contact with a cyanide scavenger by a method other than the seasoning out of the cyanide scavenger from a sensitized silver halide photographic element.

Abstract: An apparatus and method for joining webs has clamp assemblage which includes a pair of clamp members for securing and moving a trailing end of an expiring web into a spaced relations with the leading end of a fresh web. An actuator moves the clamp members securing the expiring web along guide rails to a predetermined position for setting the gap width between the ends of web.

Abstract: A photographic material comprising a cassette containing a processed photographic element, the photographic element comprising a support, at least one light sensitive silver halide layer and a protective overcoat layer on the light sensitive layer, the protective overcoat layer comprising a hydrophilic binder and permanent matte particles, the permanent matte particles comprising greater than 80 mole percent methyl methacrylate and having a mean particle size of from 1 to 1.8 .mu.m and a coating weight of from 70 to 250 mg/m.sup.2.

Abstract: An organic EL device, includes an anode and a cathode, and at least one organic luminescent medium containing a compound of the formula: ##STR1## wherein: R.sub.1, and R.sub.2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic systems; andR.sub.3, and R.sub.4 are individually alkyl of from 1 to 10 carbon atoms, and a branched or unbranched 5 or 6 member substituent ring connecting with R.sub.1, R.sub.2 respectively; andR.sub.5 is alkyl of from 2-20 carbon atoms; sterically hindered aryl and heteroaryl; andR.sub.6 is alkyl of from 1 to 10 carbon atoms, and a 5 or 6-member carbocyclic ring connecting with R.sub.5.

Abstract: A method for combining a first digital image and a second background digital image, both images including pixels having color values, wherein the first digital image includes both a foreground region having foreground color values and a key color region characterized by a key color, as well as a mixed region where the pixel color values are a mixture of the foreground color value and the key color, includes determining a first control signal that indicates the relative proportions of the foreground color value and the key color for pixels in the first digital image; and segmenting the first digital image into a key color region and a non-key color region in which the non-key color region includes pixels in the first digital image that are not in the key color region.

Abstract: The invention relates to a photographic element comprising a paper base with a thickness from 0.025 mm to 0.25 mm, at least one photosensitive silver halide layer, and a layer of microvoided and biaxially oriented polyolefin sheet having a layer thickness of 0.020 mm to 0.050 mm, a density of between 78% and 100% of the solid polymer density located between said paper base and said at least one photosensitive silver halide layer, and wherein the entire photographic element is substantially free from surface distortion or cracking when the photographic element is forced to the shape of a diameter of no less than 8.0 mm.

Abstract: A problem of mismatch in pixel resolution between a front-end device, at one relatively low pixel resolution, and an output device such as a non-impact printer or a display at a higher pixel resolution is overcome by providing for grey level enhancement of low pixel resolution binary image data to minimize jaggies in a printed or displayed image, and then increasing the pixel resolution of the grey level enhanced image data to match that of the output device.

Abstract: A method and apparatus for sequencing film image presentations. In the method, a film unit is first provided. The film unit has a digital memory store and a plurality of image frames. An index print is provided. The index print has an array of imagettes corresponding to the image frames of the film unit. The index print is then aligned with an array of switches, such that at least one switch is in registry with each imagette. The switches are then allocated to an array of triggers. The triggers each have a uniquely associated imagette. The triggers each include at least one switch in registry with the imagette. The array of triggers has at least one trigger associated with each of imagette. A plurality of the switches are then actuated in a non-predetermined sequence to define a sequence of imagettes associated with respective triggers. A sequence of image frames corresponding to the sequence of imagettes is recorded in the digital memory store.

Abstract: A fuser, for a reproduction apparatus, having at least one heated fuser roller operating at a setpoint temperature to permanently fix a marking particle image to a receiver member, and a mechanism for controlling temperature droop in the heated fuser roller. The temperature droop controlling mechanism includes a heat sink having a thermal mass selected to substantially match the heat take out rate for the nominal fuser operating process, the heat sink being movable to a position in operative contact with the heated fuser roller and a nonoperative position remote from heated fuser roller. A logic and control unit is provided for moving the heat sink from the nonoperative remote position to the operative position contacting heated fuser roller as soon as a reproduction apparatus job run is started to remove heat from the heated fuser roller thus lowering its surface temperature from the setpoint temperature.

Abstract: An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode; the organic electroluminescent element includes an organic material or a mixture thereof of 9,10-di-(2-naphthyl)anthracene derivatives.

Abstract: A color negative photographic element is disclosed comprising at least one light-sensitive image dye-forming unit containing a plural number of silver halide emulsion layers having different levels of photographic sensitivity which are spectrally sensitized to the same color region, wherein the silver halide emulsion layer having the highest level of photographic sensitivity of the unit comprises at least 40 wt %, with respect to total silver halide in the layer, of a first silver halide emulsion comprising silver halide grains with an average equivalent circular diameter represented by ECD.sub.1 and from 5 to 35 wt % of a second silver halide emulsion comprising silver halide grains with an average equivalent circular diameter represented by ECD.sub.2, and the silver halide emulsion layer having the second highest level of photographic sensitivity comprises at least 40 wt % of a third silver halide emulsion having an average equivalent circular diameter represented by ECD.sub.3, where the ratio of ECD.sub.

Abstract: A biocidal material comprises an organic biocide immobilised on a polymeric support characterised in that the support is water-insoluble and the biocide is covalently bound to the support by a hydrolytically stable covalent linkage. The material can be used for inhibiting bacterial growth in an aqueous medium e.g. the wash water of a photoprocessing system. The material can be housed in a flow-through container.

Abstract: A camera comprising a slide manually movable in forward and reverse directions, and a spool drive device connectable with a film spool for rotation in a winding direction to similarly rotate the film spool, is characterized in that the slide and the spool drive device are engaged with each other at a first location, to rotate the spool drive device in the winding direction, and simultaneously slip in contact with each other at an opposite location, to not interfere with rotation of the spool drive device in the winding direction, when the slide is moved in the forward direction, and are engaged with each other at the opposite location, to rotate the spool drive device in the winding direction, and simultaneously slip in contact with each other at the first location, to not interfere with rotation of the spool drive device in the winding direction, when the slide is moved in the reverse direction, whereby a two-way drive coupling is created between the slide and the spool drive device.

Abstract: A class of pyrazolidone compounds suitable for use as electron transfer agents in photographic development comprises pyrazolidones substituted in the 1-position by an aromatic group that is substituted in the ortho, meta or para position by -O-CO-R, wherein R is a monovalent organic group having up to 24 carbon atoms. This ester group is hydrolyzable in an alkaline developer solution, thereby deactivating the electron transfer agents after a period of time and reducing the contamination effect of seasoning into the developer solution. Photographic recording materials can be developed in reactive association with the electron transfer agent. The electron transfer agent can be present in the photographic recording materials, or in develper solutions.

Abstract: A method of precisely aligning and positioning a first portion of a first element with respect to a corresponding portion of a second element comprises the following steps: a) providing the first portion with a regular polygonal recess having N faces, a first circle with a given diameter being inscribed by said N faces of said polygonal recess; b) providing the corresponding portion of the second element with N freely rotating cylindrical rollers, said rollers being positioned in such a way as to be equally angularly spaced and inscribed in a second circle whose diameter is substantially equal to the diameter of the first circle; c) moving one of the elements with respect to the other in such a way as to introduce the N cylindrical rollers into said polygonal recess wherein each of the rollers substantially faces a corresponding vertex of the polygonal recess; and d) rotating one of said portions with respect to the other portion of said elements through an angle substantially equal to 180/N.degree.

Abstract: The device for removing flat articles from a stack comprises at least one roller which contacts the uppermost article of a stack and is rotatable about a shaft and whose circumferential surface is covered by a layer consisting of a resilient material. The resilient layer positioned on the circumferential surface of the roller includes a number of suction cups. The roller is designed as a hollow roller which includes a mechanical device by which the suction cups in the resilient layer on the circumferential surface of the roller can be operated by partial deformation of said resilient layer. The suction cups are formed by depressions in the resilient layer on the circumferential surface of the roller, said depressions cooperating with one bore each in the wall of the roller.

Abstract: Black-and-white elements, such as radiographic films, can be processed in roomlight because they include certain light absorbing dyes and desensitizers. Processing of such elements can be achieved using a processing kit and a two-stage process carried out in the same light- and fluid-tight processing apparatus. In the first stage, development is initiated with a developing composition having a pH of from about 10 to about 12.5, and comprising an appropriate black-and-white developing agent and a sulfite. After an appropriate time, a non-sulfite fixing agent is introduced into the processing apparatus or container to provide a combined developing/fixing composition, and development and fixing are carried out simultaneously. The processing method is carried out quickly, usually within about 90 seconds. The presence of sulfite and high pH in both stages decolorizes or deactivates the particulate dyes.

Abstract: Silver halide photographic elements which are capable of producing reversal images are disclosed including a substantially non-image forming overcoat or intercoat layer comprising an image forming emulsion and a non-image forming emulsion. The combination of imaging emulsion and nonimaging emulsion in a substantially non-image forming overcoat or intercoat layer results in an increase in interlayer interimage effects.