Toner cartridge capable of preventing cleaning scraper from overturning

Abstract

A selenium drum capable of preventing a cleaning scraper from overturning relates to the technical field of laser printers and comprises a plastic shell, a photosensitive drum, a charging roller, the cleaning scraper, a sealing sponge and a sealing scraper blade. A rubber strip of the cleaning scraper is of a U-shaped structure, and a linear part cutting edge in the middle of the U-shaped structure of the rubber strip is tangent to the surface of the photosensitive drum; sealing sponges are respectively adhered below the contact positions of the two ends of the U-shaped structure of the cleaning scraper rubber strip and the photosensitive drum; when the photosensitive drum is installed on the plastic part shell, the cutting edge of the polyurethane rubber strip of the cleaning scraper is tangent to the photosensitive drum and is bent downwards under the pressure of the photosensitive drum, meanwhile, the two ends of the rubber strip are in contact with the surface of the photosensitive drum, and due to the existence of the sealing sponge, the rubber strip at the two ends is sunken downwards to keep the state of being attached to the surface of the photosensitive drum. Therefore, when the photosensitive drum rotates, the rubber strips at the two ends of the cleaning scraper are pressed by the photosensitive drum, so that the situation of overturning is avoided. The device has the beneficial effects that the overturning defect of the cleaning scraper is avoided, and the product quality is improved.

Description

technical field [0001] The invention relates to a toner cartridge for preventing the overturning of a cleaning blade, which relates to the technical field of laser printers, in particular to a toner cartridge for preventing the overturning of a cleaning blade. Background technique [0002] The toner cartridge is installed inside the printer for developing and imaging. The photosensitive drum, charging roller, cleaning blade, sealing felt and cleaning blade are installed in a plastic shell. The cleaning blade is made of rubber blade and metal knife holder by pasting or pouring. The left and right corners of the rubber blade are at right angles. The cleaning blade is tangent to the surface of the photosensitive drum and has a certain pressure. When the photosensitive drum rotates, the toner remaining on the surface of the photosensitive drum is scraped into the waste toner bin by the cleaning blade. A piece of 'L'-shaped sealing felt is next to the left and right sides of the ...

AI Technical Summary

Problems solved by technology

In the actual production process, the distance between the sealing felts on both sides of some waste toner bins is smaller than the adaptable range of the cleaning blade, and the edges and corners of the rubber blade of the cleaning blade are at right angles, resulting in that when the cleaning blade is installed, the rubber blade of the cleaning blade If the pad is placed on the felt, the distance between the left and right sealing felts needs to be readjusted, which reduces work efficiency, and even the installation workers do not find that the pad pressure between the cleaning blade and the sealing felt causes the defect of the cleaning blade to flip. The flipping of the cleaning blade is the cleaning blade. The friction force between the rotating photosensitive drums is too large, so that the left and right ends of the rubber blade bend and deform in the direction of the friction force, accompanied by defects such as printer jams, abnormal noises, waste toner leakage, and black printing, which cause the toner cartridges to fail to continue. use, and the leakage of waste toner will pollute the printer, causing dust to fly in the air and polluting the environment

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