摘要:
In a first embodiment of the present invention, a plurality of electrode portions are contactably and approachably disposed on an electrostatic latent image holding member in order to equalize a toner image of an electrostatic latent image holding member. In a second embodiment, an elastic foaming apparatus is contactably or approachably disposed to the electrostatic latent image holding member in order to equalize the residual toner distribution on the electrostatic latent image holding member. In a third embodiment, an equalization member consisting of an electric conductor or a resistor is contactably and approachably disposed on the electrostatic latent image holding member in order to equalize the distribution of toner of the transfer residual toner image. An AC electric field may be generated between the equalization member and the electrostatic latent image holding member.
摘要:
An image forming method which includes the steps of providing a developing agent holder for holding one component developing agent layer arranged to contact a latent image holder, developing a latent image on the latent image holder and to simultaneously clean up the developing agent adhering to the surface a non-latent image area on the latent image holder, wherein the cleaning up is carried out under the condition expressed by the following formula:0.5.ltoreq.(Vd/Vp).multidot.m.ltoreq.3.0wherein ghe moving speed of the developing agent holder is defined as Vd, the moving speed of the surface of the latent image holder is defined as Vp and the developing agent adhering density is defined as m (mg/cm.sup.2), and the amount of the remaining toner after transferring that remains on the latent image phase of the latent image holder is set less than 0.35 mg/cm.sup.2. Further, an image forming device is provided with a blade arranged to be pressed against the latent image holder in order to uniformly distribute the toner remaining on the latent image phase of the latent image holder. Therefore, a satisfactory image having excellent quality without ghost images and fogging can be always obtained, and the satisfactory image can be obtained in a high humidity environment.
摘要:
In a developing method in which a thin layer of toner is formed on the surface of a toner carrier to which a developing bias voltage is applied and the thin layer of toner is supplied to an electrostatic latent image to thereby render the electrostatic latent image visible, the improvement wherein:when let it be supposed that:a quantity of electrification of toner that adheres to a latent image holding body by development is q [C/kg];a quantity of charges accumulated by the toner due to its triboelectrification with the latent image holding body is q.sub.p [C/kg];an electric resistance of the toner carrier is R [.OMEGA..multidot.m.sup.2 ];an effective length of the toner carrier is l [m];an effective surface area of the toner carrier is S.sub.r [m.sup.2 ];a quantity of the toner that adheres to the latent image holding body by development is m.sub.p [kg/m.sup.2 ];a speed of movement of the surface of the latent image holding body is V.sub.p [m/sec];a quantity of the toner that adheres to the surface of the toner carrier is m [kg/m.sup.2 ]; anda speed ratio of the surface of the toner carrier to that of the latent image holding body is k,these values are so adjusted as to satisfy the following conditional expression:-100
摘要:
A developing device effects desirable development when the amount of charging of toner, q (C/g), the amount of toner deposited on the surface of a developing roller per unit area, m (g/cm.sup.2), the speed of movement of the surface of the developing roller, v (cm/sec), the available length of the developing roller, l (cm), and the magnitude of electric resistance between the surface of the developing roller and a power source for developing bias, R (.OMEGA.), are adjusted so as to satisfy the formula, .vertline.q.vertline.m.ltoreq.100/vlR. The developing device produces a developed image desirable in quality and free from background fogging when the magnitude of a developing electric current, I (A), is adjusted so as to satisfy the formula, R.ltoreq.200/I. Further, when a charging device, an electrostatic latent image forming device, a transfer device, a cleaning device, a discharge device, a charging and cleaning device, an electrostatic latent image forming and cleaning device, a developing and cleaning device, or a discharging and cleaning device is provided with an elastic electroconductive roller composed of an elastic roller base and a flexible conductor layer, the device is allowed to decrease size and lower price, curb the decline of capacity due to protracted use, and preclude the occurrence of dispersion of characteristic, efficiency, or performance.
摘要:
A photoconductor is disclosed, which comprises a conductive cylindrical support which is substantially not hollowed, the conductive cylindrical support having a drive transferring mechanism coaxially and unifiedly provided on at least one of the end portions thereof, the conductive cylindrical support having a photoconductive layer on the outer periphery. The moment of inertia I (g . cm.sup.2) of the substantially not-hollowed conductive support is in the range of 0.4.ltoreq.I.ltoreq.140 (g . cm.sub.2), the diameter thereof being in the range from 0.5 to 2.0 cm. When the relation of C/(S . .omega.).ltoreq.0.4 (where S (cm.sup.2) is the square measure of the portion of the photoconductive layer on the photoconductor; C (cal/.degree.C.) is the heat capacity of the substantially not-hollowed cylindrical support; and .omega. (rad/s) is the rotating speed in development) is satisfied, high quality images can be readily and stably obtained without damages of the drive system.
摘要:
A pattern forming apparatus includes an intaglio having a pattern of depressions, developing units which form a first potential difference with the intaglio, supply a liquid developer containing charged phosphor particles to the pattern and develop by aggregating the phosphor particles in the depressions, and a transfer roller which forms a second potential difference with the developed intaglio and a glass sheet arranged in opposed relation to each other and sequentially transfers the phosphor particles aggregated in the depressions to the glass sheet.
摘要:
An image forming apparatus with high release characteristic of a toner image, which can acquire a good imprint for a long time, is provided. In the image forming apparatus using the liquid development method, by giving release agent under the visible image formed by the liquid development, which forms release layer on latent image support before development, and is, the image forming apparatus with high release characteristic of a toner image, which can acquire good transfer characteristic for a long time, is realized.
摘要:
On the surface of a developing roller disposed closely to a photosensitive drum, a toner supplied from a toner container to the surface is spread into a thin layer by a toner distribution and charging blade. The triboelectric charge, q.sub.1, of the toner and the triboelectric charge, q.sub.2, of the surface of the toner distribution and charging blade are equalized in polarity and made to satisfy a relation, .vertline.q.sub.2 .vertline.
摘要:
A solar cell module according to an embodiment includes a solar cell device and a support structure supporting the solar cell device. The solar cell device is a belt-like solar cell device including first portions arranged in one direction such that major surfaces thereof face each other, and a second portion interposed between the first portions. The edges of the first portions that correspond to a pair of long sides of the solar cell device are parallel to each other. Two adjacent first portions incline forwardly and backwardly with respect to the one direction. The second portion includes one or more planar or curved surfaces to connect the two adjacent first portions to each other.
摘要:
A pattern forming device has an original plate for pattern formation having pattern-shaped concave portions in a high-resistance layer. When phosphor particles collected in the concave portions are transferred to a glass plate, an electric field is formed between separate electrodes and a transfer roller, and a high-frequency voltage is applied to a common electrode to apply a voltage between the separate electrodes, hence to generate ultrasonic waves from a piezoelectric layer.