摘要:
In an image forming apparatus transferring a toner image on an intermediate transfer member onto a sheet in a transfer nip between a nip forming member and the transfer member, a resistance or environment detection device detects electrical resistance of the sheet or an environmental parameter correlated with the resistance, an output device outputs a transfer current, a storage device stores, as an algorithm for calculating a transfer current target value according to an image area ratio in the nip, algorithms corresponding to different resistances or environmental parameters, and a control device selects and uses, from the algorithms, an algorithm according to the detection result of the resistance or environment detection device as the algorithm for calculating the target value, and controls an output current value to equalize a current value based on the image area ratio in the nip with the target value based on the algorithm.
摘要:
According to an embodiment, a transfer device includes: an image carrier from which an image is transferred onto a transfer medium using electrostatic toner, the image carrier being applied with a direct current voltage superimposed with an alternating current (AC) voltage as a transfer bias. An output voltage of a power source for applying the voltage is controlled so that a current level of a direct current component output from the power source is kept at a specified current level.
摘要:
A disclosed method for producing a hollow cell array structure includes a first step of layering a deformable material capable of being plastically deformed under a predetermined condition on a first substrate, the first substrate having plural, mutually separated depressions in a surface thereof, such that the deformable material forms mutually isolated spaces in the corresponding depressions; a second step of expanding the spaces in the plural depressions by inducing a gas pressure of the spaces while extending the deformable material on the first substrate, such that plural hollow cells are simultaneously formed in correspondence to the plural depressions in predetermined directions; and a third step of selectively solidifying portions of the plural hollow cells by selectively applying ultraviolet rays thereto.
摘要:
A transfer device includes a controller that controls a transfer bias supply to cause a transfer bias to increase, between an image carrier and a first rotary body disposed opposite the image carrier, a potential of the first rotary body toward an opposite polarity to a charge polarity of toner of a toner image on the image carrier to be higher than a potential of the image carrier, and to change, on the basis of identified recording medium type, a returning peak value which is one of a peak value of positive polarity and a peak value of negative polarity of the transfer bias and which generates an electric field that causes the toner having moved to the recording medium from the image carrier to return to the image carrier from the recording medium in a transfer nip.
摘要:
A method of manufacturing a toner includes preparing a droplet forming device, comprising a storage portion to store a toner composition solution, a thin film formed from a rigid material, bonded to the storage portion by a bonding material, and provided with a nozzle and an oscillation device including an oscillation generation device configured to generate an oscillation upon the thin film and an oscillation amplification device which has an oscillation surface including a position that is parallel and opposite to the thin film and is configured to amplify the oscillation, periodically forming a droplet of the toner composition solution including at least a resin and a coloring agent to be supplied between the thin film and the oscillation surface and discharging the droplet via the nozzle, and solidifying the droplet of the toner composition solution discharged via the nozzle, and forming a toner particle.
摘要:
An image processing apparatus includes a binarizing unit, a determining unit, a counting unit, and a correcting unit. The binarizing unit binarizes image data based on density of the image data. The determining unit determines a pixel with high density as a character pixel and a pixel with low density as a non-character pixel in the binarized image data. The counting unit counts the number of a sequence of character pixels in a scanning direction. The correcting unit corrects, when the number of the sequence of the character pixels exceeds a threshold value, the character pixels to non-character pixels.
摘要:
A display element includes a hollow structure. The hollow structure includes plural cells disposed in a plane, each having an opening in a first wall of the hollow structure, and a partition wall separating the adjacent cells. A solvent having one or more types of white particles and/or colored particles dispersed therein is disposed in the cells. The openings are sealed with a resin insoluble in the solvent. A thickness of the partition wall separating the adjacent cells is 0.01 μm or greater but not greater than 10 μm.
摘要:
A humidity detecting apparatus includes a humidity sensor for detecting a relative humidity of air on an inner side of a window glass, an air temperature sensor for detecting a temperature of the air, a glass temperature sensor for detecting a temperature of the window glass, and a glass surface relative humidity calculation unit for calculating a glass surface relative humidity based on output values of the humidity sensor, the air temperature sensor and the glass temperature sensor. A heat conductive member is disposed between the glass temperature sensor and the window glass.
摘要:
The present invention relates to a motion device and a moving device in which the total size in a direction perpendicular to the longitudinal direction of an orbital element can be reduced to extremely smaller sizes and miniaturization can be accomplished. A motion device 1 of the present invention includes an orbital element 2, and moving elements 3 that are inserted into the orbital element 2 and are guided so as to be able to reciprocate in a longitudinal direction L of the orbital element 2, at ends of the moving elements 3, cylindrical protrusions 6a, which protrude in the longitudinal direction L and inserted into the orbital element 2, are formed so as to be pivotally supportable on bearings 7, and total size around the orbital element 2 in a direction perpendicular to the longitudinal direction L of the protrusions 6a are smaller than those of the moving elements 3.
摘要:
There is provided a photoreceptor cleanerless image forming apparatus capable of decreasing color mixture or an exposure error due to reverse transfer toner or untransferred toner.An image forming apparatus 100 according to the present invention comprises four image forming units 100a, 100b, 100c, and 100d configured to be photoreceptor cleanerless in a 4-drum tandem manner. Each image forming unit includes a photoreceptor 103a, 103b, 103c, or 103d, a charger 105a, 105b, 105c, or 105d, an exposure apparatus 106a, 106b, 106c, or 106d, and a developing apparatus 109a, 109b, 109c, or 109d. When exposure intensities Iy, Ic, Im, and Ik are assumed for exposure sources of the exposure apparatuses in the image forming units which form yellow, magenta, cyan, and black images, respectively, the exposure intensities are configured to satisfy conditions of Ik≧Ic≧Im≧Iy and Ik>Iy. This decreases an exposure error (image hysteresis) in an image formed on paper.