Developing device for laser printer
By setting a vibration mechanism and a protective unit in the developing device, the problem of toner condensation on the photosensitive drum in a humid environment is solved, and high-quality printing in humid conditions is achieved.
CN223362501UActive Publication Date: 2025-09-19联想图像(北京)科技有限公司
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Patent Information
- Application Number
- CN202422428726.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Technical Problem
When a laser printer is placed in a humid environment, the toner on the photosensitive drum condenses into lumps due to moisture, affecting the print quality and causing a decline in image quality.
Method used
A developing device including a vibration mechanism and a protection unit is designed. The vibration mechanism vibrates the photosensitive drum to remove condensed toner blocks, and the protection unit collects and discharges the condensed toner to prevent it from entering the transmission parts.
Benefits of technology
The reliability and stability of the developing device in humid environments are improved, preventing condensed toner from affecting printing quality and ensuring image quality.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a developing device for a laser printer, relates to the technical field of laser printers, and aims to solve the technical problems that surface charges of a photosensitive drum are changed due to the influence of moisture, powdered ink condensed into blocks on the photosensitive drum may not be printed on paper, and the quality of an image printed on the paper next time is influenced. Comprising a laser printer body of a laser scanning unit, a paper placing opening is formed in the top of the laser printer body, and supports are fixedly connected to the inner walls of the two sides of the laser printer body respectively. By arranging the vibration mechanism, when the laser printer is used in a humid environment, an electric field on the surface of the photosensitive drum is influenced, powdered ink condensed into blocks can be adsorbed on the surface of the photosensitive drum, the photosensitive drum rotates through a spring, a vibration plate impacts the surface of the photosensitive drum through a fluctuating plate, and then the photosensitive drum vibrates; and the vibrating device moves from the two ends to the middle to vibrate and remove the agglomerated powdered ink on the surface, so that the reliability and the stability of the device are improved.
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