Waste-toner-free cartridge

Abstract

The invention provides a waste-toner-free cartridge. The waste-toner-free cartridge comprises a box body, a photosensitive drum, a charging roller, a developing roller and a cleaning component; the box body is provided with a containing cavity, an opening and a laser channel, the opening is communicated with the containing cavity, and the opening and the laser channel are oppositely arranged in the width direction of the box body; the photosensitive drum is rotatably mounted at the opening; the charging roller is in contact with the peripheral surface of the photosensitive drum; the developing roller is rotatably mounted in the containing cavity; the developing roller is in contact with the peripheral surface of the photosensitive drum; the charging roller and the developing roller are arranged at an interval; the photosensitive drum, the charging roller and the cleaning component are all located in the containing cavity; the cleaning component is installed on the box body and extends in the direction parallel to the charging roller; and the cleaning component makes contact with the peripheral face of the charging roller. The capacity of the waste-toner-free cartridge can be increased, and waste toner can be avoided.

Description

technical field [0001] The invention relates to the field of electronic imaging equipment consumables, in particular to a non-waste toner box. Background technique [0002] An electrophotographic imaging forming device, such as a laser printer, is a device that uses the principle of electrophotography to form an image on an image forming medium (such as paper) at least through the processes of charging, exposing, developing, transferring, fixing, and cleaning . Devices that print consumable materials used on imaging devices are generally called process cartridges, toner cartridges, or printing consumables. [0003] Generally, the toner used for developing is provided by the toner box, and when the toner in the toner box is used up, replace it with a new toner box. An existing powder box includes a powder bin, a stirring frame, an upper frame, a cleaning scraper and a photosensitive drum. The stirring frame is rotatably installed in the powder bin, and the cleaning scraper ...

AI Technical Summary

Problems solved by technology

In this way, on the one hand, it is necessary to set up a space for storing waste toner on the toner box, that is, a waste toner holding chamber. In addition, the long-term friction between the scraper and the rotating photosensitive drum will damage the photosensitive coating on the surface of the photosensitive drum, affecting the exposure of the photosensitive drum and the charging roller. Charging and dissipating effects, these effects will further lead to more waste toner in printing

In addition, the waste toner accumulated on the photosensitive drum can easily cause the waste toner on the charging roller to be polluted, which in turn affects the charging and power dissipation effect of the charging roller. Therefore, the scraper and waste toner have a great impact on the printing quality.

[0004] In order to expand the output of printed pages of the product, another existing toner box is equipped with a toner replenishing bin to increase the toner storage capacity of the toner box. However, this toner box will generate more waste toner during work. The volume of the toner bin is limited, so the small-capacity waste toner bin cannot accommodate the amount of waste toner produced by the large-capacity toner bin with the same number of pages printed. Therefore, printing cannot continue after the waste toner in the waste toner bin reaches a certain amount. And when there is too much waste toner in the waste toner bin, it will also cause the internal waste toner to agglomerate

[0005] After the above two types of toner cartridges are installed in the laser printer, the waste toner bin is located near the fuser. During operation, the temperature of the waste toner bin may be as high as 50 degrees or more, causing the toner in the waste toner bin to agglomerate easily

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