Abstract: A bitmap-based digital color printing method and system is described which automatically detects when a black object is commanded to be printed, and changes the Bit Block Transfer (BitBlt) method so that the resultant composition of the black color at each point in the bitmap is responsive to the amount of non-black colorants already existing in the background color at that position on the page. For many printing systems the resulting prints exhibit fewer visual defects. Single-color black objects printed on top of a color field are printed as process black responsive to the background color. Therefore, they exhibit a greater density and gloss and show fewer problems caused by the misregistration of separations or other printer defects, such as white fringes around the black objects. They also avoid problems caused by excessive ink coverage differences between foreground black and background color.

Abstract: The present invention relates to an image forming method for forming an image by ink, and an image forming apparatus applied to a copier, a printer and the like, which enables the use of a water ink and forms an image of high quality. The image forming method comprises a particle image forming step for forming a particle image in a deposited pattern of particles; an ink supplying step for supplying ink to the particle image to hold the ink in a void portion between the particles of the particle image; and an ink transfer step for transferring the ink supplied to the particle image to an object.

Abstract: A method and apparatus for eliminating undesirable development of background charge potentials in a multicolor electrostatographic system is disclosed, wherein the application of a developer bias at a given development station is selectively controlled to be substantially equal to or greater than the background image voltage of the image generated by a preceding imaging station such that the voltage differential between toner particles at the development station and the background areas including the previous image areas is substantially zero and the electrostatic forces acting on the toner particles are insufficient to attract the toner particles to the residual image.

Abstract: A method for fabricating a multiple layer semiconductor device, such as a laser, using impurity-induced, or vacancy-enhanced, intermixing of semiconductor layers to selectively inactivate quantum well regions in the device.

Abstract: An image formation apparatus comprising:a main unit including an image formation section;a sheet storage section being disposed in said main unit for storing a large number of stacked sheets;feed means for giving a transport force to the sheets in said sheet storage section in a predetermined direction from said sheet storage section;a friction member being placed facing said feed means so that it comes in elastic contact with said feed means for forming a nip portion for separating sheets transported in overlapped relation; anda support member for forming said friction member with a projection projecting from said nip portion in either one direction orthogonal to a transport direction of the sheet for said feed means and supporting said friction member.

Abstract: A pivot is provided on or in the vicinity of the axis of binding portions of a stapler main body, and rotatably supports a front end portion of a stapler main body. A driving system swings the stapler main body about the pivot within a given angular range. Having the above pivot and driving system, a binding angle changing mechanism changes a binding angle formed by the side of recording sheets and the stapler main body by use of drive force of the driving system. An advance/retreat mechanism advances or retreats the stapler main body perpendicularly to the side of the recording sheets between a retreat position that is distant from a subject end portion of the recording sheets and a binding position where the binding portions are to bite the subject end portion.

Abstract: A system for image indexing for the domain of technical manual documents depicting line drawing images of physical equipment. Such line drawings are often associated with text labels that indicate references to component parts in an associated table. The indexing system locates regions containing a machine part in relevant pages of the manual in response to a query describing the part. The query supplied by the user is a textual description of the machine part from which an associated geometric description of the object is retrieved. The indexing mechanism includes two stages, i.e., selection and recognition. The selection phase involves isolating relevant images from the document database using a combination to textual and visual processing and indicating the appropriate regions within those images that are likely to contain the queried machine part.

Abstract: An ink composition comprised of a colorant and a phase change vehicle derived from the reaction product of a resin containing at least one furan moiety and at least one maleimide moiety, and wherein said ink possesses a viscosity of from about 1 centipoise to about 20 centipoise at a temperature of from about 100.degree. C. to about 180.degree. C.

Abstract: A photoconductive imaging member comprised of a charge transport layer comprised of an indolocarbazole represented by the Formulas (Ia), (IIa), (IIIa), (IVa), (Va), or (VIa); or optionally mixtures thereof: ##STR1## wherein R and R' are independently selected from the group consisting of a hydrogen atom, a halogen atom, alkyl, alkoxyl, and aryl; m and n are numbers of from 0 to 4; R.sup.1 and R.sup.2 are independently selected from the group consisting of alkyl, aryl, vinyl, and diarylaminoaryl; R.sup.3 and R.sup.4 are an atom of hydrogen, alkyl, alkoxy, aryl, or halogen, and p is a number of from 1 to 3.

Abstract: A method is described for uniformly coating portions of the surface of a substrate which is to be bonded to another substrate. In a described embodiment, the two substrates are channel plates and heater plates which, when bonded together, form a thermal ink jet printhead. The adhesive layer is electrophoretically deposited over a conductive pattern which has been formed on the binding substrate surface. The conductive pattern forms an electrode and is placed in an electrophoretic bath comprising a colloidal emulsion of a preselected polymer adhesive. The other electrode is a metal container in which the solution is placed or a conductive mesh placed within the container. The electrodes are connected across a voltage source and a field is applied. The substrate is placed in contact with the solution, and a small current flow is carefully controlled to create an extremely uniform thin deposition of charged adhesive micelles on the surface of the conductive pattern.

Abstract: A toner composition comprised of resin, colorant, wax, and a compatibilizer of the formulaA.sub.(a) --B.sub.(b) --C.sub.(c) --D.sub.(d) --wherein A is ethylene, B is propylene, C is butene, and D is pentene, and wherein the mol fractions are represented by a, b, c, and d, and wherein a is from about 0.05 to about 0.95, b is from about 0.05 to about 0.95, c is from about 0.05 to about 0.95, and d is from about 0.05 to about 0.95, and subject to the provision that the sum of a, b, c, and d are equal to about 1.

Abstract: A sheet delivery apparatus (10) in the form of an accessory adapted to be secured to a printing machine (11). The apparatus comprises a sheet receiver (12) arranged to co-operate with the printing machine to receive one or more sheets output by the printing machine, and sheet delivery system (18, 19) for presenting the one or more sheets to a user, the sheets being partially fed by the sheet delivery means through a security gate and deflector system to enable removal of the sheet or sheets by the user. The sheet delivery system is controlled so as to withdraw sheets from access by the user if the sheets have not been removed after a predetermined time has elapsed and to deflect them into an internal secure bin, with the security gate and deflector system being provided by a dual function dual position shutter and deflector member.

Abstract: A multibeam laser recording apparatus is so arranged as to include a scanning line interval detecting mechanism located at a position equivalent to the surface of the image carrier, for detecting scanning line intervals of the plural laser beams scanned on the surface of the image carrier, and a controller for controlling the scanning line intervals of the plural laser beams scanned on the image carrier based upon an output derived from the scanning line interval detecting mechanism in such a manner that the scanning line intervals are kept constant.

Abstract: There is disclosed an electrical component having an axial direction and two ends for making electrical contact with another component comprising a plurality of electrically conductive fibers in a matrix, the plurality of the fibers being oriented in the matrix in a direction substantially parallel in the axial direction of the component and being continuous from one end of the component to the other end to provide a plurality of electrical point contacts at each end of the component, wherein the component further includes magnetic particles.

Abstract: A drive member for use in a printing machine is provided. The drive member cooperates with a drive shaft to transfer torque therebetween. The drive member further cooperates with a torque transferring component to transfer torque therebetween. The drive member includes a body defining an aperture therein and an axis of rotation thereof. The drive member further includes a torque transferring feature associated with the body for transferring torque between the body and the torque transferring component. The drive member further includes a fit enhancing feature extending from the body toward the aperture for enhancing the fit between the body and the drive shaft.

Abstract: A state transition display window displays a hue circle and a number of setting points corresponding to respective color adjustment levels. As the user makes color adjustments, a history of the color adjustments is displayed in the form of arrows connecting related setting points. If the user specifies two setting points, images corresponding to setting point located on the line connecting the two specified setting points are displayed on an image display subwindow. A current image and six images adjacent thereto are displayed in a 6 near images display window.

Abstract: A charging apparatus for applying a uniform electrostatic charge to a charge retentive surface is provided. The apparatus includes a housing and an array of pin electrodes supported by the housing and positioned adjacent the surface in a non-contact relationship. The apparatus also includes a generally U shaped shield connected to the housing and at least partially surrounding the array of pin electrodes. The apparatus also includes a grid positioned across distal ends of the shield. The grid defines an effective charge length and an effective grid width. The apparatus also includes a power supply operatively coupled to the pin electrodes for supplying a predetermined current to each of the pin electrode. The power supply provides a predetermined voltage to the grid.

Abstract: In a disk-type inverter-stacker system with plural rotatable fingers extending radially from an axis or rotation for sequentially inverting and stacking onto a stacking tray the printed sheets outputted by a reproduction apparatus, by temporarily retaining at least the leading portion of the sheet in sheet transporting slots defined by inside surfaces of the rotatable fingers, a fixed position sheet corrugating member is spaced from but interdigitated with the rotatable fingers, extending slightly radially beyond the inside surfaces of the fingers to slightly corrugate the leading portion of said sheet while it is in the finger-defined slots to provide improved inverting and stacking of sheets exceeding the length of the slots.

Abstract: A plurality of document information is divided into intrinsic data concerning descriptive contents of a document and common data that includes attributes of the descriptive contents, and is stored within a memory. Based on the document processing instructions inputted from an input section, intrinsic data stored within the memory undergoes edit processing with an intrinsic operation unit; also, based on document processing instructions, multiple common data stored within the memory undergoes change processing with a common operation section. These processing results are mutually reflected by a conversion section, and based on this intrinsic data and common data, document images are display on an output display section. Then, a retrieve section, based on the attributes designated by the input section, retrieves, from the memory, document information that possess these attributes, and displays this information on the display section.

Abstract: A stack height control assembly utilizing the feedhead as the height sensing member. As a result of incorporating the stack height sensor into the feedhead, several advantages are realized. There is no additional drag imparted to the sheets as the result of a sensing arm or other sensing member. This also reduces the possibility of skewing the sheets with an additional sensing member. The feedhead, due to the normal force required to acquire the sheets also provides an accurate measurement of stack height. The normal force of the feedhead also eliminates and inaccuracies that could be caused by curled sheets in a feed tray. The stack height is also measured "on the fly" as the sheets are being acquired and fed, thus providing an efficient stack height sensing scheme. A floating coupler and sensor flag arrangement can be mounted so that it is engaged with a paper supply drawer as the drawer is moved into an operative position.