Developing cartridge counting gear

Abstract

The invention discloses a development box counting gear and aims to provide the development box counting gear which is simple in structure and low in processing cost and enables a development box to be reproduced without disassembly of a gear end cover. The development box counting gear comprises a gear body (1) and a toothed part (11), wherein the toothed part (11) is arranged on the gear body (1); the gear body (1) rotates without interference to the inner side of the gear end cover; a circular arc part (12) and a contact pin (13) are arranged on the top surface of the gear body (1); the central angle of the circular arc part (12) is between 95 degrees and 135 degrees; the central angle of a circular arc formed between a tail end (122) of the circular arc part (12) and an end part (131) of the contact pin (13) is between 92 degrees and 132 degrees. The development box counting gear can be applied to the technical field of development box reproduction and processing.

Description

technical field [0001] The invention relates to a developing box counting gear, in particular to a developing box counting gear applicable to the technical field of developing box regeneration and processing. Background technique [0002] After the developing cartridge is installed, there are two ways to recognize the printer: one is to recognize the printer by counting the chip, and the other is to recognize the printer by counting the counting gear; the process of counting the counting gear and recognizing the printer is as follows: when a new developing cartridge After being loaded into the printer, the printer drives the gear set to rotate, and the counting gear is driven to rotate through the gear set on the developing box. The contact pin on the upper part of the counting gear dials the counting switch of the printer. There is only less than half a circle of teeth on the counting gear, and the counting gear rotates. The half circle is blocked by the limit foot inside t...

AI Technical Summary

Problems solved by technology

[0003] like image 3 , Figure 4 , Figure 5 , Image 6 As shown, when the life of the developing cartridge in the prior art is exhausted, the positioning clip 51 on the inside of the gear end cover 50 blocks the positioning clip 53 on the traditional counting gear 52, and the counting gear 52 cannot rotate at this time, and the staff Only by disassembling the gear end cover 50 and installing the counting gear 52 back to the initial position can the developing cartridge be regenerated successfully

Therefore, every regeneration of the developer cartridge must be carried out according to the above steps, and the process of dismantling the developer cartridge can only be carried out by the staff who are familiar with the developer cartridge, and the user cannot operate smoothly, which will eventually bring great trouble to the user. Simultaneously, the developing cartridge in the prior art also has certain defects in the machine delay function; The delay function is realized by the meshing between the high-gear teeth II55. This method not only has high processing accuracy requirements for the counting gear 52 and the stirring rack gear 56, but also the delay function is not stable enough, and repeated recognition failures often occur.

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