Ink powder prevention bearing mechanism of paper box of image forming device

Abstract

The invention relates to a paper box of an image forming device, in particular relates to an ink powder prevention bearing mechanism of the paper box of the image forming device, and belongs to the technical field of image forming devices. The ink powder prevention bearing mechanism of then image forming device is characterized by comprising a paper conveying shaft (1) and an ink powder prevention bearing (3), wherein the ink powder prevention bearing (3) comprises a main bearing (3b); the outer end face of the main bearing (3b) is connected with a baffle (3d); a cambered cap (3a) inwards extending along the axial direction is arranged on the upper half part of the inner end face of the main bearing (3b); a convex rib (3a1) is arranged on the inner side of the cambered cap (3a) along the axial direction and is in contact with the paper conveying shaft (1); the outer end face of the baffle (3d) is connected with a dustproof cap (3c). The ink powder prevention bearing mechanism can prevent noise generated by a fact that ink powder enters a space between a shaft and a bearing; meanwhile, the number of parts is reduced, mounting is simplified, and the machine cost is lowered.

Description

technical field [0001] The invention relates to a carton of an image forming device, in particular to a carton anti-toner bearing mechanism of the image forming device, and belongs to the technical field of the image forming device. Background technique [0002] Existing image forming devices, such as copiers, printers, etc., all have a rotating shaft in the paper box that provides paper feeding power. Since toner often enters between the shaft and the bearing, when the shaft rotates, there is sometimes a gap between the shaft and the bearing. Noise is generated, which brings troubles to the user. The connecting parts of the shaft and the bearing, such as figure 1 shown. [0003] The prior art has also had solutions for this problem, such as figure 2 As shown, two parts are added to the bearing to prevent the toner from entering between the shaft and the bearing. However, this solution needs to add two additional parts, resulting in higher cost and more troublesome assem...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the existing image forming device, because toner powder often enters between the shaft and the bearing that provides the power for paper feeding, when the shaft rotates, noise will sometimes be generated between the shaft and the bearing, giving user annoyance

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