Toner cartridge of novel magnetic roller

Abstract

The invention discloses a magnetic roller with a sheath. The magnetic roller comprises a waste powder cabin, a cleaning scraper, a charging roller, a photosensitive drum, a powder out scraper, a powder cabin, a magnetic roller and carbon powder. The magnetic roller comprises a magnetic core, a magnetic sheath, a conductive end glue head, and a gear end glue head; the magnetic core is arranged in the magnetic sheath, the gear end glue head is composed of a gear fixed column, a gear end fixed frame, a gear end connecting column and a gear end sheath glue layer; the conductive end glue head is composed of a conductive wire, a conducive end fixed frame, a conductive end connecting column and the conductive end sheath glue layer; two ends of the magnetic sheath are respectively inserted into the gaps between the connecting column of the gear end glue head and the sheath glue layer and between the connecting column of the conductive end glue head and the sheath glue layer and then hermetically fixed by using the glue; the thicknesses of the gear end sheath glue layer and the conductive end sheath glue layer are same, and the gear end sheath glue layer and the conductive end sheath glue layer can be manufactured as required thickness according to different models and configuration. The magnetic roller with the sheath has the advantages that the man hour is saved and the cost is reduced; and the printing abnormity caused by the carbon powder and like foreign matters entering the sheath can be avoided.

Description

technical field [0001] The invention discloses a novel magnetic roller toner cartridge, relates to the technical field of printers, in particular to a toner cartridge. Background technique [0002] At present, most of the toner cartridges for beating development in the market use magnetic rollers as an accessory for intermediate transfer. Since the main body of the magnetic roller is an aluminum tube with a rough coating on the surface, the photosensitive drum cannot be in direct contact with the magnetic roller. , It is necessary to use a sheath to separate the photosensitive drum and the magnetic roller at a certain distance. This distance is controlled by changing the thickness of the sheath. The larger the distance between the photosensitive drum and the magnetic roller, the lower the blackness of the printed sample. At present, the sheath and the magnetic roller are separated. When assembling the toner cartridge, a sheath is installed at both ends of the magnetic roller...

AI Technical Summary

Problems solved by technology

At present, the sheath and the magnetic roller are separated. When assembling the toner cartridge, a sheath is installed at both ends of the magnetic roller, which is inconvenient to operate. Moreover, since the sheath and the magnetic roller are not sealed, during installation and printing, Foreign matter such as toner can easily enter between the sheath and the magnetic roller, which increases the distance between the photosensitive drum and the magnetic roller, resulting in reduced printing blackness

Application No. 201721519199.4 "A New Type of Toner Cartridge Magnetic Roller Improvement Structure" discloses a magnetic roller structure in which metal spacers are respectively fixed on the outer sides of the two ends of the aluminum sleeve. Although it can solve the problem of carbon powder entering the sheath, the structure There are two disadvantages: the first is that the precision requirements of the inner diameter of the metal spacer and the outer diameter of the aluminum sleeve are very high. If the accuracy of the metal spacer cannot meet the requirements, there will be defects in the printing blackness. The second is to ensure that Under the premise of precision, it is difficult to install the metal spacer on the aluminum tube, and it is prone to deformation of the aluminum tube and the metal spacer. The third is that the processing cost of the metal spacer is high under the high precision requirements. Not competitive in higher industrial production

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