Abstract: A base plate detachably supports a functional unit all the way between an exposed position where the functional unit is separated from a connector and drawn out of a housing of an image forming apparatus such that the functional unit is exposed to the exterior of the housing and an accommodated position where the functional unit is fitted in the housing and connected to the connector. A biasing member biases a threaded shaft of an operating device through the base plate such that a far end of the threaded shaft is directed toward a threaded hole formed in the bottom of the functional unit. The operating device is hidden inside the housing of the apparatus when the base plate is set to the accommodated position.

Abstract: A plurality of first base images are formed from a base color output in accordance with a predetermined adjustment value. A plurality of first correction images are formed on the first base images from a correction color to be a subject for correction output in accordance with a predetermined adjustment value. The first correction images are displaced within a predetermined range. The first adjustment value is determined from changed adjustment values. The second base images are formed from the base color output in accordance with the predetermined adjustment value, and the second correction images are formed from the correction color output in accordance with a plurality of adjustment values determined based on the first adjustment value. The second adjustment value having an extreme is determined from a plurality of adjustment value candidates. Finally, the adjustment value for the correction color is corrected to the determined second adjustment value.

Abstract: The present invention relates to a compound of the formula [I]: 1

Abstract: A plurality of first base images for a base color are formed in accordance with a predetermined adjustment value. A plurality of first correction images for a correction color to be a subject for correction are formed on the first base images in accordance with a predetermined adjustment value. The first correction images are displaced within a predetermined range. The first adjustment value is determined from changed adjustment values. The second base images for the base color are formed in accordance with the predetermined adjustment value while the second correction images for the correction color are formed in accordance with a plurality of adjustment values determined based on the first adjustment value. One second adjustment value having an extreme is determined from the plurality of adjustment value candidates. These processes are repeated to determine a final adjustment value. The adjustment value for the correction color is corrected to the determined final adjustment value.

Abstract: Each of a plurality of combined images is formed separately for each image carrier with respect to a length related to the circumference length (Dp×&pgr;) of the image carrier. There is provided a combined-image adjusting section for forming a combined image so that a density detecting section detects the density of the combined image at plural and substantially equal pitches within a range of at least one circumference length (Dp×&pgr;) of the image carrier, or so that the density detecting section detects the density average value of the combined image at plural and substantially equal pitches within a range of at least one circumference length (Dp×&pgr;) of the image carrier.

Abstract: An image adjustment method for an image forming apparatus in which an adjustment image is formed by transferring a plurality of reference images formed by a color component to be the reference among a plurality of color components and a plurality of images to be adjusted, which are formed by other color component to be adjusted, onto a transfer medium so that the images to be adjusted are superposed on the reference images, the density of the formed adjustment image is detected, and an image forming position of the other color component to be adjusted is adjusted based on the detected density of the adjustment image. The density of the surface of the transfer medium is detected, and the position of forming the image to be adjusted is adjusted, based on the detected density of the surface of the transfer medium and the detected density of the adjustment image.

Abstract: Images based on each of a plurality of color components are formed; the formed images are transferred on each transfer medium to form an image quality determining image; the image quality of the image quality determining image is determined on the basis of the detected density thereof, an adjustment image is formed by overlaying and transferring an image of other color component to be adjusted to the reference image of the reference color image out of the plurality of color components, on the transfer medium; the density of the adjustment image is detected; and the image forming position of the other color component to be adjusted is adjusted on the basis of the detected density.

Abstract: An optical electric charge removal device mountable on an image formation apparatus of an electrophotographic system for removing residual charges on a photosensitive member by light irradiation is provided. The optical electric charge removal device includes a point light source provided in the image formation apparatus; and an optical conductor, mountable on a process cartridge which is detachable from the image formation apparatus, for guiding light incident from the point light source to the photosensitive member.

Abstract: An information processing structure is disclosed that is formed of single electron circuits each operating rapidly and stably by way of a single electron operation. The information processing structure includes a MOSFET (11), and a plurality of quantum dots (13) disposed immediately above a gate electrode (12) of the MOSFET and each of which is made of a microconductor or microsemiconductor of a nanometer scale in size. Between each of the quantum dots and the gate electrode is there formed an energy barrier that an electron is capable of directly tunneling. The total number of such electrons moved between the quantum dots and the gate electrode is used to represent information. In the structure, a power source electrode (14) is disposed in contact with the quantum dots and a pair of information electrodes (15) is disposed across a quantum dot in contact therewith for having electric potentials applied thereto, representing data of information.

Abstract: The delivered sheet stacking tray has a delivered sheet stacking surface, provided on an upside of an image forming section, which extends in a sheet-transporting direction so that a transporting-direction end of the delivered sheet stacking surface is opened toward a lateral outside of the image forming device body, wherein the delivered sheet stacking surface has a sheet removing concave which extends from (a) the transporting-direction end via (b) a stacking area of a maximum size sheet to (c) a stacking area of a minimum size sheet so that the sheet removing concave is positioned within an area ranging from the stacking area of the maximum size sheet to the stacking area of the minimum size sheet, and the sheet removing concave is formed substantially in parallel to a line linking (i) a corner portion of the stacking area of the maximum size sheet which corner portion is positioned on a downstream side in the transporting direction and on a front side of the image forming device to (ii) a corner portion o

Abstract: A base plate detachably supports a functional unit all the way between an exposed position where the functional unit is separated from a connector and drawn out of a housing of an image forming apparatus such that the functional unit is exposed to the exterior of the housing and an accommodated position where the functional unit is fitted in the housing and connected to the connector. A biasing member biases a threaded shaft of an operating device through the base plate such that a far end of the threaded shaft is directed toward a threaded hole formed in the bottom of the functional unit. The operating device is hidden inside the housing of the apparatus when the base plate is set to the accommodated position.

Abstract: A sealing material for electric parts containing a lead-free tin silicate-phosphate glass of 50-100 volume percents and refractory fillers of the balance. The lead free tin silicate-phosphate glass consists essentially of, by molecular percent, 30-80% SnO, 5.5-20% SiO2, and 10-50% P2O5. The glass may contain at least one of glass stabilizing elements, said glass stabilizing elements including 3-25% ZnO, 0-4.9% B2O3, 0-5% Al2O3, 0-10% WO3, 0-10% MoO3, 0-10% Nb2O5, 0-10% TiO2, 0-10% ZrO2, 0-15% R2O (R is Li, Na, K, and/or Cs), 0-5% CuO, 0-5% MnO, 0-10% R′O (R′ is Mg, Ca, Sr and/or Ba), a total content of at least one of the glass stabilizing elements being up to 40%.

Abstract: A junction/disjunction unit 38 of the multicolored image forming apparatus joints/disjoints a transfer material holder with/from an image holder, to switch over between a monochromatic image forming mode which uses a specific image forming unit and a multicolored image forming mode which uses a plurality of image forming units. For switching the image forming mode, a driving unit 39 for driving the junction/disjunction unit 38 also drives an auger 37 provided for conveying toner, which has been recovered by a transfer material holder cleaning unit for recovering toner remaining on the transfer material holder, into a recovery container 36. Accordingly, a driving force outputted from the driving unit can be effectively utilized, and thereby good cost performance can be realized.

Abstract: An image forming apparatus transfers a toner image formed on a photoconductor drum onto a sheet-like recording member while the sheet-like recording member is transported and attracted to a transfer belt, and comprises a jam handling control unit for detecting a transport fault of the sheet-like recording member, and for stopping the transport operation when the transport fault is detected. When the transport fault is detected in a section other than a fixing section, the jam handling control unit first causes the transport operation of the fixing section, and thereafter causes the transfer belt and the transport operation on the upstream side thereof to stop, and any sheet-like recording member remaining on the transfer belt so that the transport mechanism on the upstream side thereof is transported and stopped at the position spanning between the area of the fixing section and the area of the transfer belt.

Abstract: A polyimide precursor in accordance with the present invention contains amide acid ester units, either imide units or amide acid units, and fluorine atoms bonded to some of these structural units. A polyimide precursor resin composition in accordance with the present invention contains either such a polyimide precursor or resins separately containing the structural units. Polyimide precursors in accordance with the present invention and resin compositions based on the same therefore have excellent properties and are suitably used in particular to form a particular pattern and for other purposes by impart photosensitivity to them.

Abstract: The present invention includes a first plate (14) and a second plate (15) which perform a coarse adjustment of a cylinder mirror (245) by moving the cylinder mirror (245) linearly in the substantially vertical and parallel directions with respect to an appropriate plane surface of a reflective surface (RS) of the cylinder mirror (245), and the second plate (15), a second plate opening section (15b), a setscrew (24), and a hexagon shaft (25) which perform a fine adjustment in the position of the cylinder mirror (245) by moving linearly only in the substantially parallel direction after the coarse adjustment has been completed.

Abstract: An optical scanner assembly in which a pair of F&thgr; lenses are arranged symmetrically across a single deflector means and a reflector for introducing a light beam from at least one of a plurality of light sources to the deflector means is arranged on the side opposite to that light source with respect to an axis of symmetry of the F&thgr; lenses so that the optical path up to the reflector crosses the axis of symmetry, thereby securing the optical path length from the light source to the deflector for the miniaturization of the optical scanner assembly and allowing easy adjustment for equalizing the optical path lengths of all the light sources.

Abstract: An image forming apparatus is provided with a photoreceptor drum which includes a barrel-shaped drum whose surface is coated with a photosensitive layer, and a rear-side drum flange section; and a developer. A coupling section at which the photoreceptor drum is attached to or detached from an image forming apparatus main body includes an input section and an apparatus output section. The input section is composed of an internal gear having teeth of an involute curve formed in an inner surface of the rear-side flange section and receives rotation driving force from the image forming apparatus main body. The apparatus output section is composed of an external gear having teeth in the same shape and in the number as the internal gear, and outputs the rotation driving force from the image forming apparatus main body to the input section.

Abstract: An optical electric charge removal device mountable on an image formation apparatus of an electrophotographic system for removing residual charges on a photosensitive member by light irradiation is provided. The optical electric charge removal device includes a point light source provided in the image formation apparatus; and an optical conductor, mountable on a process cartridge which is detachable from the image formation apparatus, for guiding light incident from the point light source to the photosensitive member.

Abstract: An oscillating piston type compressor has a piston formed integral with a blade. The compressor accommodates in a casing a compression mechanism section and a motor section, the mechanism including the piston having a plate-shaped blade integrally formed on a cylindrical portion is fitted onto an eccentric portion of a crankshaft to perform orbital motion relative to an inner peripheral surface of a cylinder, the plate-shaped blade being formed at its radial end surface with a recess or a protrusion, which serves as a reference of position.