Abstract: A dual-gate transistor formed of two transistors connected in series between a first power terminal and a first node is used as a charging circuit for charging a gate node (first node) of a transistor intended to pull up an output terminal of a unit shift register. The dual-gate transistor is configured such that the connection node (second node) between the two transistors constituting the dual-gate transistor is pulled down to the L level by the capacitive coupling between the gate and second node in accordance with the change of the gate from the H level to the L level.

Abstract: In an image forming apparatus, an electrostatic latent image formed on a surface of a photoreceptor is developed into a toner image. A printing paper transported on a transport belt is brought into contact with the surface of the photoreceptor and an electric field is applied to the printing paper from a rear surface of the transport belt by a transfer roller to transfer the toner image onto the printing paper. The transfer roller applies different levels of electric field to the printing paper, so that a predetermined transfer electric field is applied to a region other than a leading edge of the printing paper being transported. An electric field weaker than the predetermined transfer electric field is applied to the leading edge. Even in the presence of a projection generated when the printing paper is cut, the printing paper naturally strips off from the surface of the photoreceptor.

Abstract: A transfer device includes a transfer device controller for controlling the whole transfer device, a storage for storing various kinds of data etc. necessary for control, an intermediate transfer unit including a primary transfer power supply and its driver, a secondary transfer unit including a secondary transfer power supply and its driver, and a PTC unit. In the transfer device, a controller communicates with a main controller that controls the whole image forming apparatus, and acquires, for example, information on the total print count or the like. When PTC radiation is determined to be needed based on the above information, the controller controls to drive the PTC unit.

Abstract: Provided is a liquid crystal display device including contact hole parts in a gate line driving circuit, and light shielding layers formed of a metal material on a color filter substrate, where an insulating film is formed so as to cover the light shielding layer of the color filter substrate in a region on the array substrate, the area being opposed to the contact hole parts.

Abstract: A shift register circuit comprises a first transistor between a gate line output terminal and a clock terminal, a second transistor between the gate line output terminal and a first power supply terminal, a third transistor between a carry signal output terminal and the clock terminal and a fourth transistor between the carry signal output terminal and the first power supply terminal. Gates of the second and fourth transistors are connected to each other. A fifth transistor connected between a gate of the first transistor and a second power supply terminal and a sixth transistor connected between a gate of the third transistor and the second power supply terminal have gates both of which are connected to an input terminal. With this constitution, it is possible to suppress an influence between two synchronous output signals outputted from the shift register circuit.

Abstract: A touch panel capable of calculating touch position coordinates of an indicator with high accuracy in a desired detection time even if a large number of detection wire groups are provided. An oscillator circuit selects one of detection wires selected by a circuit or the like according to a command from a detection control circuit and oscillates. A circuit counts an output signal from the oscillator circuit up to a first count value. A circuit measures a period of the count. A circuit determines that there is a touch when it detects the detection wire of which the measured period is equal to or higher than a threshold value and sends the detection wire giving a maximum value equal to or higher than the threshold value to a circuit as a touch detection wire.

Abstract: A charging device includes a rotatable screw gear, a motor, a support, and a protruding member. The screw gear is positioned along length of a linear electrode. The motor rotates the screw gear in forward and reverse directions. The support holds the cleaning member mounted so as to be in contact with the electrode, and is mounted unrotatably but reciprocably between a first end and a second end of the electrode. The member extends perpendicular to the length of the electrode from the support, and has a projection for being elastically fitted into a thread groove of the screw gear along a radial direction of the screw gear. The member is configured in such a manner that a distance between a starting point of elastic deformation of the member and a contact point between the projection and a thread of the screw gear differs according to whether the support is moved forward or backward.

Abstract: An image forming apparatus and a maintenance method thereof are provided to enable rotation and replacement of a peeling claw at a suitable timing before the peeling claw is deformed or damaged. Several peeling members are disposed in a width direction of a drum-shaped photoreceptor. Each peeling member is disposed with a peeling claw and a collision sensor detecting that the peeling claw collides with a sheet. A collision history value of each peeling claw is stored and managed based on a collision detection signal from the collision sensor; if the peeling claw reaching a preset rotation request value exists in the read collision history values of the peeling claws, a rotation request of the relevant peeling claw is reported; the collision history value of the rotated peeling claw is rewritten; and if the peeling claw reaching the rotation request value does not exist, a print process is performed.

Abstract: A touch panel device according to the present invention includes: a stylus pen including a conductive stylus pen electrode portion at a tip portion thereof; a plurality of capacitance detecting interconnections formed on a substrate in row and column directions; an oscillator circuit which outputs an oscillation signal for performing charging/discharging to each of the plurality of capacitance detecting interconnections, the oscillation signal having a cycle which changes in accordance with an amount of electric charges in the charging/discharging; and a counter circuit and a computing circuit/control circuit which compute, based on a change of the cycle being in accordance with a capacitance formed between the electrode portion of the stylus pen and the capacitance detecting interconnections, positional coordinates of the stylus pen brought in proximity to the capacitance detecting interconnections in a non-contact manner, wherein the stylus pen outputs to the electrode portion of the stylus pen an input pen

Abstract: Each detection column wiring is constituted by a set of a first metal wiring having a zigzag pattern and a second metal wiring having a structure axisymmetric with the first metal wiring about a column direction as an axis, wherein the first metal wiring is constituted by first sloped portions which are obliquely sloped by an inclination angle of 45 degrees with respect to the column direction, and first parallel portions which are parallel with the column direction and are continuous with the first sloped portions, such that the first sloped portions and the first parallel portions are repeatedly placed in a zigzag shape along the column direction. Each detection row wiring also has the same structure. A sloped portion out of the first sloped portions of the first metal wiring is always orthogonally and spatially intersected, at its middle point, with a sloped portion out of the second sloped portions of the third metal wiring at its middle point.

Abstract: A transfer mechanism includes: a transfer unit having a transfer belt; and a belt contact and separation assembly for bringing the transfer belt into, and separating it away from, an electrostatic latent image support by shifting the position of the transfer unit. The belt contact and separation assembly includes: a multiple number of transfer unit shifters that abut the transfer unit and shift the position of the transfer unit; a multiple number of linkage members that link with the plural transfer unit shifters, correspondingly; an elastic member for coupling the plural linkage members; and a driver for actuating the transfer unit shifters through the linkage members.

Abstract: A charging device includes a long electrode, a cleaning member, a timing device, a drive source, a load measuring device, and a control device. The drive source moves the cleaning member in the outward direction for a first time period after the outward passage time and then reverses the cleaning member in the homeward position. The load measuring device measures driving load imposed on the drive source while the cleaning member is being moved. The control device controls motion of the drive source to turn the cleaning member from the outward direction to the homeward direction at a predetermined objective point near the second end, based on sum of driving loads imposed on the drive source while the cleaning member is being moved from the first point to a second point located along the outward direction.

Abstract: A transfer device is configured to include a drive roller, a driven roller and a transfer belt supported between these rollers and provided with first and second guide ribs extending circumferentially at both side edges on the undersurface thereof and a drive roller, so as to prevent the transfer belt from skewing by making the drive roller and driven roller abut at both ends against first and second inner circumferential surfaces of the first and second guide ribs. The drive roller and the driven roller are specified to have a length approximately equal to each other and shorter than the spacing between the first and second inner circumferential surfaces and arranged such that the first spacing between a first end of the drive roller on the drive gear side and the first guide rib is wider than the second spacing between a second end of the driven roller on the drive gear side and the first guide rib.

Abstract: A belt carrying device includes supporting rollers, an endless belt supported by the supporting rollers, and guiding members provided on the endless belt. The endless belt is rotated by rotation of the supporting rollers. An outer peripheral surface of the endless belt is in contact with a cleaning member. The guiding members are provided on those projecting areas of the endless belt, which project in an axial direction of the supporting rollers from both end surfaces of the supporting roller. A guiding member suppresses meandering of the endless belt by coming into contact with an end surface of the supporting roller. Formed on the end surfaces of at least one of the supporting rollers are projecting sections and groove sections, which are rotated around a rotation axis of the at least one of the supporting rollers in response to rotation of the at least one of the supporting rollers.

Abstract: A transfer device includes a transfer device controller for controlling the whole transfer device, a storage for storing various kinds of data etc. necessary for control, an intermediate transfer unit including a primary transfer power supply and its driver, a secondary transfer unit including a secondary transfer power supply and its driver, and a PTC unit. In the transfer device, a controller communicates with a main controller that controls the whole image forming apparatus, and acquires, for example, information on the total print count or the like. When PTC radiation is determined to be needed based on the above information, the controller controls to drive the PTC unit.

Abstract: A first contact hole formed in a gate driving circuit is covered with an electrically conductive oxide film formed to be connected to the first contact hole and having a first pattern. The periphery of the electrically conductive oxide film is surrounded by an electrically conductive oxide film (a sacrifice electrode) formed simultaneously with the electrically conductive oxide film and having a second pattern form.

Abstract: An image forming apparatus for executing image forming process on a page by page basis including: a toner image forming section for producing a visible image formed of toner as a toner image on an image carrier; a transfer section which performs a transfer process for transferring the formed toner image onto a recording medium; a cleaning section which removes toner remaining on the image carrier after the transfer process; a waste toner storing section in which the removed toner is accumulated; and a waste toner amount detecting section which detects an amount of the toner accumulated in the waste toner storing section on the basis of at least three detection levels.

Abstract: Cleaning performance of a cleaning pad for cleaning a charging wire is maintained so that the charging voltage of an image carrier by a charging wire is stabilized. A charging wire cleaning apparatus is provided with a cleaning pad for cleaning a charging wire which charges an image carrier, a slider which is a supporting body for supporting the cleaning pad, and a screw shaft which is a moving mechanism for reciprocating the slider in parallel to the charging wire. When the slider is at a predetermined position of the reciprocation range, the cleaning pad and the charging wire are separated, and the cleaning pad is adapted to be shifted with respect to the charging wire in this state.

Abstract: A level shifter and a charge pump circuit are added, among cascade-connected unit frequency dividing circuits forming a frequency dividing circuit, to the unit frequency dividing circuit in the first stage. The charge pump circuit boosts an input voltage based on a dot clock signal, and supplies the booster voltage to the unit frequency dividing circuit in the first stage. The unit frequency dividing circuit in the first stage, which is driven by the booster voltage, attains an improved current driving capability. The improved current driving capability of the unit frequency dividing circuit in the first stage to which the dot clock signal of high frequency is input leads to a widened operating margin of the frequency dividing circuit.

Abstract: A parasitic capacitance is reduced between a lower electrode of a photodiode and data line. A photosensor according to this invention includes a glass substrate; an underlying insulator which is provided on the glass substrate, and has a dielectric constant lower than that of the glass substrate; and a switching element which is formed by laminating a gate electrode, a gate insulating film, and a semiconductor layer on the underlying insulator, and includes a drain electrode connected to the semiconductor layer. The drain electrode has an extended portion which directly contacts a surface of the underlying insulator. The photosensor further includes a photodiode which is provided on the extended portion of the drain electrode.