摘要:
A xerographic printing device, including a charging device having a thick grid that includes a first pattern divided by a second pattern. In some embodiments the first pattern is a hex, the second pattern is a solid band, the first pattern is divided into two sections of equal size, each section corresponds to a two-dimensional array of pins, the first pattern is formed by etching, the second pattern is formed by the absence of etching, and the grid is constructed of stainless steel. The charging device can be a corotron, a dicorotron, a scorotron, a discorotoron, a pin corotron, a pin scorotron, or any other charging device of that type.
摘要:
The present invention drives cleaning member moving devices for moving cleaning members of a plurality of chargers at the same time by a single cleaning motor to miniaturize an image forming apparatus and reduce the cost. Further, at the end time of cleaning, all the cleaning members are shifted to a predetermined area by the cleaning member moving devices, and the cleaning motor is stopped, thus the cleaning members remain in a charging area, and uneven charging is prevented.
摘要:
The present invention drives cleaning member moving devices for moving cleaning members of a plurality of chargers at the same time by a single cleaning motor to miniaturize an image forming apparatus and reduce the cost. Further, at the end time of cleaning, all the cleaning members are shifted to a predetermined area by the cleaning member moving devices, and the cleaning motor is stopped, thus the cleaning members remain in a charging area, and uneven charging is prevented.
摘要:
A grid cleaner 35 is fixed to a fixing holder 41 of an apparatus main body in such a way that a wet sponge 38 faces a grid 33. When a charging device 3 is made to slide in the direction indicated by arrow A, the wet sponge 38 comes into contact with a surface of the grid 33, thereby removing extraneous matters therefrom. Reference numeral 40 denotes a stopper projection that prevents the charging device 3 from being disconnected from the apparatus main body at times other than during cleaning. The stopper projection 40 extends toward a gap roller 39 side so as to serve as a guide portion 42 that prevents the wet sponge 38 of the grid cleaner 35 and the gap roller 39 from rubbing against each other.
摘要:
The invention is directed to self-regenerative, polymeric coatings and methods of using the coatings in xerography to increase the life and effectiveness of catalytic surfaces, such as, for example, charging device surfaces, by neutralizing ozone and nitrogen oxide species.
摘要:
The image forming apparatus includes a rotatable image bearing member, a latent image forming device, a developing device, a transferring device, a corona charging device which has a discharge wire and a shield member to surround the discharge wire, and which is arranged in a position on a downstream side of a developing position on the image bearing member with respect to a rotational direction of the image bearing member; a density detecting member which detects a density of the toner image on the image bearing member in a position on a downstream side of a discharge position of the corona discharging device with respect to the rotational direction of the image bearing member and on an upstream side of a transfer position; and an air flow path in which an air flow path formed through the inside of the shield member and air is sucked from the image bearing member side toward the shield member. Thus, in the image forming apparatus, toner scattered from the developing device side and headed to the density detecting member can be reduced, and an ozone near post charging device can be removed.
摘要:
A charging device includes a case that surrounds a charging unit and has plural ventilating sections, a gas separating unit that varies a component ratio of the air near an opposed portion of a photosensitive member and the charging unit, and a gas electrolyzing unit that electrolyzes moisture of the area near the opposed portion. The gas separating unit has a nitrogen enriching unit that includes a nitrogen enriching film set in a ventilating section and a pressurizing chamber for forming a pressure difference between the inside and the outside of the case and supplies a nitrogen enriched air to the inside of the case or an oxygen enriching unit that includes an oxygen enriching film set in another ventilating section and a depressurizing chamber for forming a pressure difference between the inside and the outside of the case and exhausts an oxygen enriched air to the outside of the case.
摘要:
An image forming apparatus wherein a wire of a charger is cleaned while a process unit is attached to or removed from a casing. A cleaning unit pinches the wire of the charger therein slidably, and reciprocates to clean the wire when the process unit is attached to or removed from the casing.
摘要:
A charging device assembly used within a reprographic machine having a hollow shell containing the charging device, an attachment mechanism that retains the charging device relative to the hollow shell in a predetermined position, a pair of end covers at either end of the hollow shell and an electrical connector on the shell coupled to the charging device. The hollow shell can be conductive or insulative and is formed with features that facilitate easy mounting and removing of the elements of the charging device assembly.
摘要:
A charging device assembly used within a reprographic machine having a hollow shell containing the charging device, an attachment mechanism that fastens the charging device to the hollow shell in a predetermined position, a pair of end covers at either end of the hollow shell and an electrical connector on the shell that is coupled to the charging device. The shell can be conductive or insulative and is formed with features that facilitate easy mounting and removing of the charging device assembly.