Abstract: An apparatus and method for correcting top edge sheet misregistration using a sensor array. An array sensor is placed in the paper path prior to transfer. A signal is generated indicating the position of the sheet. As a function of the signal the print controller causes the image to be exposed and developed on the photoreceptor in alignment with the sheet position. The aligned image is then transferred to the sheet.

Abstract: A droplet emitter with an array of droplet emitting devices constructed such that one flowing liquid is used to create the droplets while a second low acoustic impedance liquid can be used to both make the transfer of acoustic energy to the first liquid more efficient and help maintain a uniform temperature of the droplet emitter array. Both the emission fluid and the low acoustic impedance fluid can be circulated through the droplet emitter to allow for excess heat generated by control electronics to be transferred to the flowing. This prevents for instance excess heat build up within the droplet emitter and allows for higher more accurate droplet emission.

Abstract: A developing apparatus has a developer support 2 to which a developing bias VB with an AC component VAC superimposed on a DC component is applied for visualizing a latent image on a latent image support 1 in a dual component developer G supported on the developer support 2. It includes a use history estimation 5 for estimating a use history of the developer G or a use history detection device 6 for detecting a use history of the developer G and a developing bias power supply 3 provided with a peak-to-peak voltage changing device 4 for changing a peak-to-peak voltage Vp-p of the AC component VAC based on information from the use history estimation device 5 or the use history detection means 6.

Abstract: In an image forming apparatus which represents gradation of an image by using a halftone screen structure, and which transfers and fixes the image onto a print sheet by using an intermediate transfer body, where a number of protruding portions are provided with an approximately uniform distribution, the degradation of image quality due to a moire fringe pattern produced by the halftone screen structure and the distribution of the protruding portions of the intermediate transfer body is reduced.

Abstract: The present invention is a method and apparatus for modifying line synchronization signals that drive at least one secondary image exposure device in a multicolor printing or reprographic system. The ability to alter the line synchronization signals enables the accurate registration of a multiple color images on a photoconductor in response to detected photoreceptor motion. More specifically, the first color image is deposited on the photoreceptor using a servomotor control system to control photoreceptor velocity as a function of the desired raster line spacing, or the frequency at which the individual raster lines are deposited. All subsequently added colors in the single-pass printing system are added under the control of phase-locked loops, wherein the line synchronization pulses are produced as a function of the photoreceptor speed, to correct for variations from the nominal photoreceptor velocity.

Abstract: An apparatus for developing a latent image recorded on an imaging surface, including a housing defining a chamber storing a supply of developer material, a donor member, spaced from the imaging surface, for transporting developer material on the surface thereof to a region opposed from the imaging surface, the donor member includes an electrode array on the outer surface thereof, the array including a plurality of spaced apart electrodes extending substantially across the width of the surface of the donor member: a cascade loading member, spaced from the donor member, for cascading developer material at a predefined velocity onto the donor member; and a multi-phase voltage source operatively coupled to the electrode array, the phase being shifted with respect to each other such as to create an electrodynamic wave pattern having at a phase velocity for moving developer material to and from a development zone.

Abstract: An electrostatographic development system includes a multicolor array; a photoreceptor having a plurality of layers, each layer being sensitive or accessible only to one of multiple wavelengths; and electrostatographic development apparatus for exposing areas of the photoreceptor to emitted light from the multicolor printbar, and, after exposure, depositing at least a plurality of toners on the photoreceptor in response to exposure of areas of layers of the photoreceptor to the emitted light. The multicolor array for such an electrostatographic development system includes a plurality of subarrays of light emitting areas arranged across a length of the array, wherein each of the plurality of subarrays includes a plurality of light emitting areas and each of the plurality of subarrays emit light of a different wavelength from the remaining subarrays.

Abstract: Provided is an image-forming process including a step of forming an electrostatic latent image on a latent image-carrier and a step of developing the latent image by a developer on a developer-carrier disposed facing the electrostatic latent image-carrier, a developer contains a color toner containing a wax which amount is from 1 to 10% by weight of the toner is used, and the developer-carrier wherein a ten-point average roughness (Rz) of the surface thereof of and the average spacing (Sm) of roughness peaks meet the following formula is used; 5.ltoreq.Rz.times.20.ltoreq.Sm. By the process, the conveying property of the developer is good, staining of the surface of the developer-carrier can be prevented, and images having a high quality and excellent in the fixing property over a long period time is obtained even in the case of using oil-less color toners containing a wax.

Abstract: A simplified, reduced-size ink-jet type image forming apparatus includes a cap member that covers a nozzle, a pump member that sucks air from inside the cap member, a cap through-hole seal member that seals the through-hole of the cap member, a wiper member that removes the ink adhered to an edge of the nozzle and a carriage position fixing member to which is affixed a recording head transfer carriage, that is moved by a drive motor.

Abstract: The invention is to suppress a fluctuation in resistance of a charging member due to the environment and the applied voltage, and to suppress the charging potential of a photosensitive article to realize uniformity in charging by preventing generation of leakage at a part of a low resistance on the surface of the photosensitive article. The charging member may have a conductive core material, a conductive elastic layer formed on a surface of the conductive core material, and a resistance adjusting layer for adjusting a resistance between the conductive core material and the surface of the article to be charged, formed on a surface of the conductive core material, have a material for forming the resistance adjusting layer and a conductive filler for adjusting resistance that exhibits conductivity by electronic conduction, and having a volume resistivity of 5.times.10.sup.5 .OMEGA..multidot.cm or more at an electric field of 5.times.10.sup.4 V/cm.

Abstract: A member for use in an electrostatographic printing machine is adapted to transfer a charge from a charging source to a surface adapted to receive a latent image. The member is also adapted to clean at least one of marking particles and contamination from the surface.

Abstract: A holographically formed reflective display includes first and second substrates, a liquid crystal material located between the first and second substrates and a plurality of anisotropic polymer sheets separating the liquid crystal material into a plurality of liquid crystal material regions. The anisotropic polymer sheets reduce haze in the display and operates in the reverse mode when viewed from various viewing angles. The holographically formed reflective display may be used to form a color liquid crystal display and a color projection system.

Abstract: A method and apparatus in an electrostatographic reproduction machine having a plurality of development units for reliably producing high quality toner particle images under varying sustained area toner coverage conditions.

Abstract: An ink composition comprised of (1) a carbamate or thiourea each with a melting point of from about 60.degree. C. to about 120.degree. C. and an acoustic-loss value of from about 25 to about 80 dB/mm, (2) an alcohol compound with melting point of about 25.degree. C. to about 90.degree. C. and with an acoustic-loss value of from about 5 to about 40 dB/mm, (3) a lightfastness component, (5) an antioxidant, and (6) a colorant.

Abstract: A crosslinkable coating composition including an alcohol soluble acrylated polyamide containing alkoxymethyl or alkoxyalkylmethyl groups attached to amide nitrogen atoms, a crosslinking catalyst and a mixture of a hydroxy functionalized aromatic diamine with a hydroxy functionalized triarylamine. A coating is formed from this composition.

Abstract: A test circuit incorporated as part of an image sensor array having a plurality of image sensors and associated transfer circuits includes a test line associated with each photosensor. In a test mode, a signal output from a photosensor can be substituted with a predetermined voltage from an external source. By providing a predetermined test voltage to the transfer circuits and then reading out signals from the transfer circuits, faults in the transfer circuits can be isolated from faults in the photosensors.

Abstract: A liquid ink printer for depositing liquid ink to form an image on a recording medium moving along a path including a contact heater and a printhead. The printhead, disposed adjacent to the path, is adapted to deposit ink on the recording medium in a print zone including a dimension being defined by the printhead. The contact heater, disposed adjacently to the path, includes a positive temperature coefficient material, generating heat energy for heating the recording medium. In one embodiment, the positive coefficient material comprises a doped ceramic material. A first portion of the heater is disposed substantially opposite said printhead and a second portion is disposed at a position located before the printhead along the path direction.

Abstract: A coating method using an endless, hollow substrate in the shape of a belt or cylinder having an outer surface, an inner surface, a first end, and an open second end, including: (a) depositing via dip coating a first coating solution over the outer surface of the substrate and simultaneously over the inner surface by permitting the first coating solution to flow through the second end to be deposited on the inner surface, thereby depositing a first layer over the outer surface and the inner surface; and (b) depositing via dip coating a second coating solution over the first layer on the outer surface of the substrate and simultaneously over the first layer on the inner surface by permitting the second coating solution to flow through the second end to be deposited on the first layer on the inner surface, thereby depositing a second layer over the outer surface and the inner surface, wherein the first layer and the second layer are deposited over all of the outer surface and the inner surface of a predetermine

Abstract: An electrostatic-charged image developing toner containing a binder resin and a coloring agent, which is excellent in the fixing characteristics, has high charging uniformity and stability, and gives excellent images, wherein the crosslinking molecular weight Mc of the toner obtained by a temperature dispersion measurement in the dynamic viscoelasticity of the toner is from about 1.6.times.10.sup.4 to 3.5.times.10.sup.6, or the crosslinking density Me thereof is from about 1.6.times.10.sup.-8 to 3.5.times.10.sup.-6 /Kmol.

Abstract: A printed sheets output inverting and stacking system for printers printing normal size sheets oriented widthwise and long size sheets oriented lengthwise, with a disk type rotatable sheet inverting and stacking system positioned adjacent to one side of the printer output path with its axis of rotation parallel to the direction of sheet movement of the printer. A scuffer or other lateral sheet feeding system receives the printed sheet output of the printer and laterally moves each sheet towards one side of the printer output path, at right angles to the original direction of sheet movement, and into the sheet inverting slots of the rotatable disk inverter-stacker, so that the long size sheets are inverted widthwise, for increased stacking reliability.