Abstract: Contrast and brightness adjustments can be made to a system tone reproduction curve. These contrast and brightness adjustments can be made, for example, by user, via a user input device, or alternatively, automatically detected, based on an image analysis routine. By determining one or more generic tone reproduction curves, and interpolating these tone reproduction curves with the system tone reproduction curve, a new, adjusted tone reproduction curve is produced. This allows for a determination of the adjusted system tone reproduction curve as opposed to calculating and restoring the families of system tone reproduction curves adjusted for all the possible combinations of contrast and brightness.

Abstract: A method of making a print head is disclosed for use in a marking apparatus in which a propellant stream is passed through a channel and directed toward a substrate. Marking material, such as ink, toner, etc., is controllably introduced into the propellant stream and imparted with sufficient kinetic energy thereby to be made incident upon a substrate. A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials may be introduced into the channel and mixed therein prior to being made incident on the substrate, or mixed or superimposed on the substrate without re-registration.

Abstract: An electroluminescence (EL) device containing a number of layers, including two electrodes and positioned between the electrodes a mixed region, a hole transport region, and an electron transport region, wherein the mixed region contains, for example, biphenyl TPD, an electron transport compound and a luminescent compound.

Abstract: An image display device is structured with an image display medium, a voltage applying unit and a control unit. The image display medium has black particles and white particles enclosed in a space between a transparent front substrate and a rear substrate. The front substrate is structured with a lamination having a substrate, an electrode and a surface coat layer. The rear substrate is structured with a lamination having a substrate, an electrode and a surface coat layer. The electrode on the front substrate is connected to the voltage applying unit while the voltage applying unit is connected to the control unit. The control unit controls the voltage applying unit to apply to the electrodes of the substrates an alternating voltage at a frequency of from 20 Hz to 20 kHz.

Abstract: Uniformity of light output from an LED printbar is achieved by current sensing or image sensing of auxiliary LEDs on the LED printbar. A photodetector measures the light output from the auxiliary LEDs and a comparator will compare the auxiliary LED data to determine if the entire LED printbar has to be compensated to make the light output more uniform.

Abstract: A system and method for selective scaling of an image by selective implementation of a window averaging processing technique or an interpolation processing technique. For enlargement scaling, the interpolation processor is implemented. For reduction scaling, the window averaging processor is implemented. For anamorphic scaling, the window averaging processor may be selected and implemented for reduction processing pursuant to a two-pass processing technique wherein the interpolator processing will be implemented thereafter. Image tags are provided for selective scaling of each area of an image according to the type of content of each area by selective implementation of a window averaging processing technique or an interpolation processing technique. The interpolation processor is implemented for line drawing areas of an image, and the window averaging processor is implemented for contone areas of the image.

Abstract: A toner removal apparatus for a reproducing machine has a cylindrical brush mounted for rotation in a closely fitting housing. The housing has an open side confronting a moving photoreceptor. Brush fibers extend through the housing open side into interfering contact with the photoreceptor and sweep toner therefrom. A slot in the housing parallel to the brush is connected to a vacuum source to draw air into the housing open side, through the brush fibers, and out the housing slot. First and second parallel bars are mounted on opposite sides of the housing slot and extend into contact with the brush fibers. The first bar compresses and then releases the brush fibers to flick toner therefrom. The second bar extends into the housing a lesser amount than the first bar and contacts the brush fibers without compression thereof, thereby providing an air seal, so that all of the air flows through the brush fibers.

Abstract: Automatic actions can be obtained through a network using an area of marking medium with machine-readable markings that encode an action/medium identifier. The action/medium identifier identifies an action that can be produced through the network, and also identifies the area of marking medium. For example, it may include a globally unique or network-wide page identifier as well as an action identifier that can be used to produce an action described by data associated with a counterpart digital page. Or it can include both a page identifier and a location identifier, with the location identifier also identifying an action that relates to the page's digital counterpart. Or it can include a document identifier and an action identifier. Or it can be a globally unique or network-wide sticker identifier that can be used to identify a document, a peripheral device, or another object to which the sticker is attached, and that also produces an action through the network.

Abstract: The present invention relates to a high intensity blending method for producing surface modifications to electrophotographic and related toner particles. The improved method utilizes an improved blending tool comprising a shank having riser members at each end, such risers being angled to the axis of the shank between 10 and 16 degrees and having a height dimension greater than 20 percent of the diagonal dimension of the shank.

Abstract: Two circuit bearing substrates, such as a rigid electronic circuit board and a flexible circuit film, each having large arrays or multiple arrays of surface contact pads or traces, are mechanically and electrically joined without relocating the substrates during the bonding process by using a bonding apparatus with multiple working tools or bond shoes. The bonding apparatus includes a fixture for holding the circuit bearing substrates with a joining layer between them, and two or more independently operated heated bond shoes that compress different portions of the circuit bearing substrates with the joining layer, such as a layer of anisotropic conductive film.

Abstract: A rotational cable shortening system for shortening the effective length of a cable by bending a section of the cable. The shortening system comprises a rotatable bridged channel through which the cable is threaded. Upon rotation of the bridged channel, the cable is deflected and effectively shortened.

Abstract: A secure document processing system for receiving an original document and for printing a secure hardcopy version of the original document, wherein the secure hardcopy version includes a machine-readable encoded image signature which represents an image segment of the original document. Such hardcopy secure documents can be validated by inputting them to an secure document validation system operable to identify and process the machine readable encoded representation and in response to determine whether the recovered image signature indicates that the document is counterfeit or has been altered.

Abstract: An apparatus and process for applying an electrical charge to a photoreceptor wherein a bias charge roll member is situated in contact or in close proximity with a surface of member to be charged such as a photoreceptor. The bias charge roll member is supplied with an electrical bias having a rectified AC waveform onto which a DC bias is superimposed after the waveform has been rectified. The result is the ability to raise the voltage potential of the photoreceptor with less pulse voltage and, more particularly, to increase the voltage potential of the photoreceptor along as if only DC voltage were applied far above what is possible in the prior art. Among the advantages of the invention is the ability to minimize photoreceptor wear at higher levels of photoreceptor charge since the DC-offset bias enables the second Paschen threshold to be avoided for higher levels of the photoreceptor charge.

Abstract: An apparatus and process for applying an electrical charge to a photoreceptor wherein a bias charge roll member is situated in contact or in close proximity with a surface of a member to be charged such as a photoreceptor. The bias charge roll member is supplied with an electrical bias having a variable voltage waveform onto which a DC bias is superimposed. The amount of DC bias is selected to set the signal voltage such that a minimally acceptable amount of AC corona is created sufficient for uniform photoreceptor charging while avoiding unnecessary excessive positive corona that causes excessive photoreceptor wear.

Abstract: A development system optimized for efficient development of an electrostatic latent image on an imaging surface. The development system includes a development material sump, a magnetic developer roll including a rotatable sleeve having located therein a rotatable magnetic core, and a developer material delivery system for providing a metered supply of developer material to the rotatable sleeve. One or more stationary magnetic shunts are located with respect to the magnetic core, sleeve, and/or developer material delivery system so as to block the magnetic field effective for attracting developer material to the sleeve, thus allowing disengagement of the developer material therefrom at a drop-off zone.

Abstract: An image display apparatus has an image display medium and a voltage applying section. The image display medium has a top-plane substrate and a back-plane substrate. The top-plane substrate has a transparent display-side electrode whose entire surface is uniform, formed on a transparent substrate. The back-plane substrate has an inner electrode and an outer electrode, formed on a substrate. Conductive colored particles, whose color is different from a color of the inner electrode, are enclosed between the top-plane substrate and the back-plane substrate. The voltage applying section has a DC power source, a first switch, a second switch, and a control unit. When the color of the inner electrode is displayed, the control unit controls the first switch such that the inner electrode is connected to the DC power source, and controls the second switch such that the outer electrode is grounded. Then, the colored particles move reciprocally and move to the outer electrode.

Abstract: An image forming apparatus is included of a pivotally rotated photosensitive drum, a developing roller for developing an electrostatic latent image formed on this photosensitive drum, and an intermediate transfer belt for temporarily holding the toner image which has been developed to be formed by the developing roller. This developing roller is equipped with a tracking roller which abuts against the photosensitive drum so as to keep a distance between the developing roller and the photosensitive drum as a constant distance. A direction of weight “a” produced by this tracking roller with respect to the photosensitive drum may be positioned within a so-called “wrap range” corresponding to an abutting range between the intermediate transfer belt and the photosensitive drum.

Abstract: A liquid crystal composition including:

Abstract: An apparatus and method for erasing incomplete and/or pending jobs from a marking device's non-volatile memory after a power loss. A threshold power loss duration can be selected, as can type of job(s) to be erased and whether users should be notified of erasure.

Abstract: A system and method for detecting edge locations where intercolor bleeding would likely be a problem, and reducing the amount of ink printed at those locations. The method operates on image data including a set of pixels with each pixel having multiple separation values. Upon receipt of the image data, the data is analyzed to identify those pixels located at an edge. A coverage value is computed from the separation values for those pixels identified as being located at an edge. Based on the coverage value, a reduction factor is determined. The reduction factor is used to multiply the separation values for the pixels located at the edge to yield reduced pixel values.