laser printer

Abstract

The invention provides a laser printer. A powder box installation position for installing the powder box is arranged in the housing. A contact pin mechanism is installed at the end of the powder box installation position. The contact pin mechanism includes a base, and the base is fixedly connected to the powder box. In terms of position, a plurality of contact pins and a circuit board are arranged on the base, and the plurality of contact pins are electrically connected to the circuit board. The contact pin mechanism also includes a protection part, a limit part and a spring, and the protection part is provided with a plurality of grooves , the groove has an opening, and each contact pin is installed into a groove through the opening, the protective piece cooperates with the limiting piece, the protective piece can slide along the limiting piece in the extending direction of the groove, the first end of the spring is connected to the The protective piece abuts, and the second end of the spring abuts against the installation position of the powder box. The groove supports and protects the stylus, avoiding deformation or breakage when in contact with the electrical contacts, thereby improving the durability and stability of the stylus mechanism.

Description

technical field [0001] The invention relates to the field of electronic imaging printers, in particular to a laser printer equipped with a stylus mechanism. Background technique [0002] An electronic imaging printer is a device that uses the principle of electrophotographic imaging to form images on recording materials. Image imaging devices include copiers, printers, fax machines, and the like. Process cartridges used in image forming equipment are generally divided into two types, one is an integrated toner cartridge that includes a developing roller and a photosensitive drum as a developing device, and the other is a split toner cartridge that separates the photosensitive drum to the outside. Both toner cartridges are detachably mounted into the main body of the image forming apparatus. [0003] A typical image imaging device is a laser printer. Laser printers are one of the most widely used image imaging devices at present. Laser printers use the physical and chemical ...

AI Technical Summary

Problems solved by technology

[0007] However, since the contact pin 15 protrudes from the base so as to be better electrically connected to the electrical contacts, but when the powder container 11 is taken out from the powder container mounting position, the contact pin 15 will always be exposed on the base 14, so the exposed contact pin 15 is easily polluted by the residual carbon powder in the movement, so that the electrical connection performance of the contact pin 15 is reduced. Deformation or breakage of the stylus leads to failure of the entire laser printer

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