Abstract: An ink composition comprised of a colorant and a vehicle component, and which vehicle component is comprised of the condensation product of an organic acid and an amino alcohol.

Abstract: A method of operating a processor control machine, and a machine having a processor for producing human perceptible output related to an image display feature presented in an original image using the model data structure (the model) from which the original image was produced. In response to the display of an output producing region displayed coextensively with the first image segment including a display feature representing a data item in the model, a human perceptible output is produced using the data item. This is done at the same time as the first image is being displayed, giving the perception to a machine user of providing information related to the display feature in the first segment. The human perceptible output is a second image displayed by the output producing region, called a viewing operation region, or VOR. The VOR consists of one or more explicit input regions and one or more explicit output regions, spatially separated from the one or more input regions.

Abstract: An ink jet printing system is provided with a re-circulating ink system which continuously moves ink through the printhead preventing ink thickening or drying out of the ink at the nozzles during non-print periods. Several printhead embodiments are disclosed in which a continuous ink path is established through the printhead by forming ink channels in various internal portions of the printhead. In one embodiment the ink flows through channels formed in an upper substrate through the non-ejecting nozzle area and exits through channels in which the ink heating resistors are located. In other embodiments the ink enters channels formed in an upper substrate and exits through channels formed in a lower substrate. Ink may be ejected through nozzles formed in a nozzle plate or directly from grooves which form a meniscus at the required ink ejection areas.

Abstract: An ink cartridge for use in a thermal ink jet printer has a printhead with an edgeshooter configuration and improved heat management. The cartridge has a supply of ink in a chamber and a passageway for placing the chamber in fluid communication with the printhead. The printhead has an array of heating elements, one in each of a plurality of ink channels, and located a predetermined distance from the channel opens which serve as nozzles. The passageway directs the ink in a path closely adjacent the heating elements, so that more of the waste heat generated by the heating elements are transferred to the ink prior to entry of the ink into the channels, thereby resulting in more waste heat being carried away by the ejected ink droplets.

Abstract: A method and apparatus for consolidation of equivalence classes of scanned symbols as may be used for image data compression. The present invention performs run-length symbol extraction and classifies symbols based on both horizontal and vertical run length information. An equivalence class is represented by an exemplar. Feature-based classification criteria for matching an exemplar is defined by a corresponding exemplar template. The feature-based classification criteria all use quantities that can be readily computed from the run endpoints. Reducing the number of equivalence classes is achieved through a process called equivalence class consolidation. Equivalence class consolidation utilizes the symbol classifier to identify matched exemplars indicating equivalence classes which may be merged. For a consolidated equivalence class, the exemplar matching the most symbols is selected as the representative for the class.

Abstract: In a name service apparatus, a virtual resource management table has three sorts of fields, name, position and procedure. For a virtual resource, its name, position of an actual resource and name of procedure to handle the actual resource are held in correspondence to each other. On receiving inquiry request for name, a communication section requests a retrieval section of a name resolution section to carry out name resolution. The retrieval section retrieves the virtual image management table using the received name as a key. If the received name is a virtual resource, the position of the actual resource and the procedure name are obtained from the table and access to the virtual resource becomes possible.

Abstract: An apparatus and method for controlling the modulation of an exposing beam of a rotating polygon type image forming apparatus using control marks formed on a rotating surface portion of a polygon member or a motor polygon assembly. The control marks are read by a reader during rotation of the polygon member, and the information read from the control marks is used to control the modulation of the exposing beam of the image forming apparatus to expose evenly spaced, uniformly sized, precisely oriented, geometrically straight scan lines of pixels on a photosensitive member. The control marks can include pixel clock information, intensity correction information, error correction information about individual facets of the polygon member, and motor speed control information.

Abstract: A process for the preparation of 4-oxo-2,2,6,6-tetramethyl-1-piperidinyloxy which comprises the reaction of triacetone amine in the presence of a catalyst and a peroxide.

Abstract: An apparatus and method that utilize a sensor circuit and a liquid supply to control resistance of a fluid carrier of an aquatron. The resistance of the fluid carrier or charging pad is maintained by controlling the loading or concentration of liquid in the charging pad. A comparison of the fluid or liquid level in the charging pad to the desired fluid level for the charging pad triggers the addition or reduction of fluid to the charging pad to achieve the desired fluid level and thus the desired resistance. A minimum fluid carrier resistance is required to prevent loading the power supply when charging over pinholes and scratches in the imaging surface.

Abstract: A heat and pressure fuser and RAM system therefor. The RAM system includes a metering roll, thin film and a metering blade supported for effecting intimate contact between the metering roll and the thin film. The thin film is supported for movement from a supply reel to a take-up reel for periodic movement of a new portion of the film into contact with the metering roll. In this manner, contamination in the area of contact between the metering roll and the thin film is minimized. Moreover, the thin film which has a high surface tension, minimizes blade wear.

Abstract: A charge transporting polymer represented by formula (I-1) or (I-2) and an electrophotographic photoreceptor containing the same: ##STR1## wherein Y and Z each represents a divalent hydrocarbon group; A represents a group represented by formula: ##STR2## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group or a halogen atom; X represents a substituted or unsubstituted divalent aromatic group; n represents an integer of 1 to 5; and k represents 0 or 1; B and B' each represents --O--(Y--O).sub.m --H or --O--(Y--O).sub.m --CO--Z--CO--OR' (wherein R' represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted aralkyl group; Y and Z are as defined above; and m represents an integer of 1 to 5); m represents an integer of 1 to 5; and p represents an integer of 5 to 5000.

Abstract: A user interface system for providing pen based input to large display screens includes a portable computer supporting both a wireless transmitter and a small pen input screen. A computer is connected to a large display screen having an area substantially larger than an area of the small pen input screen of the portable computer. A wireless receiver is connected to the computer and configured to receive wireless communications from the portable computer. An input mapping module is used for controlling user defined output on the large display screen in response to user defined input from the small pen input screen of the portable computer. The input mapping module has a selectable first mode for positioning graphical output to fall within a bounding box movable about the large display screen in response to pen movement on the small pen input screen.

Abstract: A slidable subsystem for use in a printing machine is provided. The subsystem includes a body slidably mounted to the printing machine, a handle connected to the body, and a lever. The lever is operably associated with the body. The lever selectively secures the body to the printing machine. The lever is moveable into a first relaxed position and a second secured position. The lever cooperates with said handle to permit the handle to be extended forwardly when the lever is in a relaxed position.

Abstract: A belt transporter roller for an image forming apparatus according to the present invention has a rotating shaft of an elastic roller; and an elastic fin wound around the rotating shaft and provided along an axial direction thereof, the fin including at least two spiral groups different in winding direction.

Abstract: An image coding apparatus wherein an image signal including a locally high signal can be coded efficiently with minimized distortion by adaptively performing quantization for each subblock. An input image signal is divided into a plurality of subband signals by a subband division section. The subband signals from the subband division section are each divided into a plurality of subblocks by a subblock division section. In a classification section, a subband signal is classified, for each of the subblocks from the subblock division section, in terms of a feature parameter of an image, for example, a dynamic range, and a class index is outputted. In a quantization section, a quantizer is changed over for each subblock in response to the class index from the classification section. Each subblock is coded with a necessary minimum number of bits. The bit number is multiplexed with a code. Accordingly, the code can be decoded by referring to the bit number.

Abstract: A process for the preparation of a thermal diffusion transfer component comprising: dissolving an organic pigment in a Lewis acid and a polar aprotic solvent to form a pigment solution; coating the solution on a substrate; optionally washing the coated substrate with a protic solvent to remove the Lewis acid and the aprotic solvent; and optionally drying the coated substrate.

Abstract: A method of unifying edge data structures using a processor. The method begins with creation of a first edge data structure and unifying it with a second edge data structure. If during unification any of the contexted lazy copy links associated with the second graph data structure are activated, then second graph data structure is expanded. Expansion involves first selecting a contexted lazy copy link from among the contexted lazy copy links associated with the second graph data, selecting a selected attribute from the subtree feature structure pointed to by the selected contexted lazy copy link, making a copy of the selected attribute and storing the copy of the selected attribute in the second graph data structure as a second attribute, and adding a contexted lazy copy link from the second attribute to the selected attribute value.

Abstract: Printing is effected in units of data of a band that includes a plurality of line data while a recording head is moved perpendicularly to the movement direction of a recording medium. An output interface receives compressed data from an external apparatus. An output buffer retains data of the nth band even after printing of those data. An output processing section judges whether each line data of the (n+1)th band is compressed data, empty data, or non-compressed data. For the compressed data, the output processing section restores the line data of the (n+1)th band using differences from corresponding line data of the nth band, and updates the corresponding line data of the output buffer. For the empty data, the output processing section erases the corresponding line data of the output buffer. For the non-compressed data, the output processing section overwrites the line data of the (n+1)th band on the corresponding line data of the output buffer.

Abstract: A damping member is disposed between a motor cover attached near a rotary polygon mirror drive motor so as to cover a rotary polygon mirror and an optical cover attached to an optical box so as to cover the motor cover and a (f-.theta.) optical lens group. The damping member can absorb a vibration generated in the motor cover when the rotary polygon mirror and the rotary polygon mirror drive motor are driven to thereby alleviate a transmission of a vibration to the optical cover. Furthermore, a heat generated from the rotary polygon mirror drive motor is radiated from the optical cover through the damping member to thereby prevent a heat from being filled in the inside of the optical cover. In this way, it is possible to avoid the vibration and the heat from affecting the (f-.theta.) lens group or the like as much as possible. Thus, the light beam can be focused on the photosensitive material under satisfactory condition.

Abstract: A printing machine having multiple distributed high voltage power supplies is disclosed. The printing machine comprises a print engine having a plurality of high voltage electrical printing machine components. A housing supports at least one of the high voltage power supplies. A receptacle mounted on the housing receives an external connector from one of the machine components. The receptacle is fixed on the housing and is not detachable. A contact located inside the receptacle electrically connects circuitry from the power supply to the external connector. A second contact on the housing electrically connects circuitry from the power supply to a second external connector on the machine component.