Magnetic roller processing

    The developing magnetic roller is an important part of laser printers and color copies. The function of the magnetic roller is to absorb the carrier or toner to form a magnetic brush. When the magnetic brush is in contact with the rotating photosensitive drum, the toner is absorbed by the electrostatic latent image and developed. The surface of the developing magnetic roller has fine craftsmanship, high smoothness, compact structure, stable transmission, no abnormal noise, and long service life; the magnetic force distribution of each magnetic block in the magnetic core part is intact; the sleeve has good magnetic permeability, and has high magnetic force and magnetic pole asymmetry The characteristics of the distribution.

    Purpose

    The developing magnet roller is an important part of carrying toner. The permanent magnetic core does not rotate, and its function is to use magnetism to attract toner to the surface of the magnetic roller. The surface of the magnetic roller is sandblasted or drawn with a full circle of hundreds of axial shallow grooves, so that it forms electrical cavities with the toner scraper to facilitate toner transfer. When the magnetic roller loaded with toner rotates out of the position of the scraper, the toner on the surface of the magnetic roller is not only charged, but due to the force of the magnetic field, it forms a "magnetic spike", that is, a "toner mist". ;, to apply a bias to the outer sleeve of the magnetic roller, so that the magnetic spikes are arranged in an orderly manner. The function of the magnetic roller "spacer" is to control the effective attracting distance between the magnetic spike on the surface of the magnetic roller and the photosensitive drum, which is beneficial to improve the toner "bounce imaging".

    Composition

    It is mainly composed of an inner magnetic core, an outer sleeve, and flanges at both ends.