Abstract: A printing device that comprises a receiver for receiving print data from a host computer, a transmitter for transmitting to the host computer a reception process completion signal indicating that the receiver completes the receiving of print data, a recognizing device for recognizing that the host computer requests the receiver and transmitter to change a communication protocol to another, and an altering device for altering the timing of transmitting a reception process completion signal sent by the transmitter when the recognizer recognizes the change of the communication protocol to another.

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 liquids can be circulated through the droplet emitter to allow for excess heat generated by control electronics to be transferred to the flowing liquids. This prevents, for instance excess heat build-up within the droplet emitter and allows for higher more accurate droplet emission rates.

Abstract: Disclosed is an ink jet recording ink comprising water, an aqueous organic solvent, a surfactant and a self-dispersible pigment, wherein the number average particle diameter of dispersed particles of the pigment is from 15 to 100 nm, given that mv is the volumetric average particle diameter of the dispersed particles of said pigment and mn is the number average diameter of the dispersed particles of said pigment, mv/mn is less than or equal to 3, the number of particles having a particle diameter greater than or equal to 0.5 .mu.m among the dispersed particles of the pigment contained in one liter of the ink is less than or equal to 7.5.times.10.sup.10, the surface tension of the ink is less than or equal to 60 mN/m, the electroconductivity of the ink is from 0.05 to 0.4 S/m and the pH of the ink is from 6 to 11. This ink provides a high storage stability and a uniform image having high water-resistance, resolution, and density can be obtained.

Abstract: Disclosed are a photo-semiconductive electrode that has a high light-to-electricity conversion efficiency and excellent stability and can be prepared economically and easily, and a photo-electric cell using the photo-semiconductive electrode. The photo-electric cell comprises a photo-semiconductive electrode having an electroconductive base and a light-to-electricity conversion layer formed thereon, and a counter electrode, such that the photo-semiconductive electrode and the counter electrode contact an electrolyte, wherein the light-to-electricity conversion layer holds an organic pigment. In the photo-electric cell, the photo-semiconductive electrode and the counter electrode are used integrally and disposed so that these electrodes contact the electrolyte. The organic pigment suited for use in the layer is selected from the group consisting of: phthalocyanine pigment such as titanyl phthalocyanine, chlorogallium phthalocyanine and hydroxygallium phthalocyanine; and naphthalocyanine pigments.

Abstract: A modular electronic assembly comprising a plurality of modules. Each modules power connection plates including a single dynamically defined root power connection plate and at least one dynamically defined branch power connection plate. Each module has a power distribution controller for dynamically defining the single root power connection plate and branch power connection plate(s) and distributing power between the modules only from branch power connection plates to root power connection plates of the modules connected by power connection plates. A constant current power supply is connected to at least one of the plurality of modules to provide a substantially constant current to all of the plurality of modules connected together by power connection plates.

Abstract: A method of developing a job for output with an output subsystem is provided. The method includes generating a first electronic representation of a first image at a first time, reading a subset of placemarking instructions at a second time, generating a second representation of a second image at a third time, wherein the second time is after the first time but before the third time. At a fourth time, which fourth time is after the first, second and third times, a selected function is performed relative to a third electronic representation of a third image in response to the reading of the subset of placemaking instructions.

Abstract: A contactless process for detecting electrical patterns on the outer surface of a member comprising providing a member having a charge pattern on an outer surface, repetitively measuring the charge pattern on the outer surface of the member with an electrostatic voltmeter probe maintained at a substantially constant distance from the surface, the distance between the probe and the imaging member being slightly greater than the minimum distance at which Paschen breakdown will occur to form a parallel plate capacitor with a gas between the probe and the surface, the frequency of repetition being selected to cause all time dependent signals to fall out of phase by a predetermined amount, and averaging the out of phase time dependent signals over a sufficient number of measuring repetitions to eliminate the time dependent signals. In one embodiment, the contactless process detects surface potential charge patterns in an electrostatographic imaging member.

Abstract: Methods for displaying results of a spreading activation algorithm and for defining an activation input vector for the spreading activation algorithm are disclosed. A planar disk tree is used to represent the generalized graph structure being modeled in a spreading activation algorithm. Activation bars on some or all nodes of the planar disk tree in the dimension perpendicular to the disk tree encode the final activation level resulting at the end of N iterations of the spreading activation algorithm. The number of nodes for which activation bars are displayed may be a predetermined number, a predetermine fraction of all nodes, or a determined by a predetermined activation level threshold. The final activation levels resulting from activation spread through more than one flow network corresponding to the same generalized graph are displayed as color encoded segments on the activation bars. Content, usage, topology, or recommendation flow networks may be used for spreading activation.

Abstract: A substrate sensor system having a light source for radiating light toward a substrate position, a light sensor system positioned to receive light transmitted or reflected at the substrate, a lens that images the light transmitted or reflected at the substrate onto the light sensor system, and a telecentric stop between the lens and the light sensor system. Beneficially, such substrate sensor systems will include an electrical circuit that produces position information regarding the position of a substrate and/or the position of an image on a substrate.

Abstract: Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first, photosensitivity-imparting substituent which enables crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer also containing a second, thermal sensitivity-imparting substituent which enables further crosslinking or chain extension of the polymer upon exposure to temperatures of about 140.degree. C.

Abstract: A reference frequency and facet to facet correction circuit utilizes a phase locked loop which includes a digital phase detector to measure the time difference between the end of scan and the end of count of each facet and store them in a lookup table. The phase locked loop continuously generates an average time value form the time differences of all the facets of the polygon. The phase locked loop also adds the errors of each facet to the average time value and uses the result to correct the frequency of a pixel clock generator for both the reference frequency and facet to facet errors.

Abstract: A toner for developing an electrostatic latent image includes at least coloring particles containing a colorant and a binder resin. The volume average particle size of the coloring particle is 1.0 to 5.0 .mu.m. The toner is further characterized in that (1) the relationship between the quantity of the electric charge and the particle size is adjusted appropriately, (2) the particle size distribution is adjusted appropriately and/or (3) an external additive comprising at least an ultra microparticle and a super-ultra microparticle may be added, the rate of coating on the coloring particle being adjusted appropriately. A method for forming an image includes (1) a developing step in which a toner layer is formed on the surface of a developer support arranged opposed to a latent image support and an electrostatic latent image on the latent image support is developed with the toner layer to obtain a toner image and (2) a transfer step in which the toner image formed is transferred to a transfer material.

Abstract: A heat recovery management system for transferring an image to a print media in a development system of the type having an intermediate belt. The system comprises a first station that receives an energy-transfer medium to heat the belt at a first position utilizing heat from the energy-transfer medium. The first station outputs the energy-transfer medium with a reduced heat content and a second station receives the reduced heat content energy-transfer medium from the first station. The second station absorbs heat from the belt at a second position after which the second station outputs heat enriched energy to the energy-transfer medium and circulates the heat enriched energy-transfer medium back to the first station.

Abstract: Noise detection devices are placed at arbitrary measurement points. A selection device switches the output of the noise detection devices and an analyzer analyzes the noise amount of the frequency component for each frequency band of radiated noise. A comparison device is made up of a storage section for storing measurement data provided by a plurality of the detection devices and a comparator, and finds a difference and a greater-than, equal-to, or less-than relationship between the noise amount analyzed by the analyzer and a predetermined value in a full band or at a specific frequency or a difference and a greater-than, equal-to, or less-than relationship between the noise amounts at two points. Output of the comparison device is displayed on a display device.

Abstract: A phase change ink composition comprising a phase change ink carrier system in combination with a compatible colorant system, the colorant system comprising a combination of (1) a black colorant having an absorbance in the 475 nanometer region which is less than 80 percent of the absorbance at the 580 nanometer region and (2) a sufficient amount of at least one other colorant having an absorbance in the 475 nanometer region whereby the colorant has a ratio of absorbance in the 475 nanometer region to the 580 nanometer region from about 0.92:1.0 to about 1.01:1.

Abstract: An improved method is disclosed for forming heater elements for an ink jet printhead. The resistance is more closely controlled by doping a central heater region which is formed relatively thinner than the heavily doped heater regions which are used as the gate and contact areas. The thinner central region can doped relatively heavy in order to more accurately adjust the heater resistance.In another embodiment, the thin layer is amorphous silicon rather than the polysilicon to increase the latitude of the energy input.

Abstract: A sheet material for use in a gyricon display in which a rotatable element, which has a portion which is capable of being permanently magnetized may be oriented to experience an attractive force between itself and a soft magnetic material pad. The attractive force between the element and the pad serve to latch the element in place and prevent unwanted display changes from taking place. The element may be constructed to be either cylindrically or spherically shaped. The element and the soft magnetic material pads may be arranged to provide multiple latching states as desired.

Abstract: The present invention is a method and system for lithographic printing by controlling the surface energy of a printing plate to affect the hydrophilic and hydrophobic properties of the printing plate. These properties enable the ink to be applied to the printing plate in an image-wise manner and provides for rapid production of images on a recording medium. The lithographic printing plate may be rewritten repeatedly between printing jobs or may even be rewritten between individual recording media.

Abstract: In an image forming apparatus, at least a part of a transporting passage for guiding a recording sheet of paper to an image forming unit is opened from the front side of an apparatus body. According to the image forming apparatus, a paper jam can be easily removed and a space necessary for maintenance/inspection such as removal of the paper jam can be minimized.

Abstract: An apparatus for developing a latent image recorded on a surface, including a housing defining a chamber storing a supply of developer material comprising toner; a toner donor member spaced from the surface and being adapted to transport toner to a region opposed from the surface; an electrode member spaced near the surface of a donor roll, said electrode member being electrically biased by a power supply to detach toner from said donor member as to form a toner cloud for developing the latent image; and a current signature analysis system, in communication with said power supply, for sampling an instant current signature being supplied to said electrode member; and a comparator, in communication with said current signature analysis system, for comparing said instant current signature to a plurality of preset fault signatures, said comparator including means for generating a message fault if the difference between said instant current signature to a plurality of preset fault signatures exceed a preset thresho