Laser Unit (Exposure)

The laser unit is equipped with the Vertical Cavity Surface Emitting Laser (VCSEL) technology.

40 laser beams are emitted to produce 2400dpiƗ4800dpi.

Laser beams are reflected on the polygon mirror and lenses to create a latent image on each of the photoconductive drums by imparting static electricity on the surface of the drum.

Laser unit illustration numbered callout illustration

  1. VCSEL

  2. Polygon mirror

  3. OPC drum

  4. Laser beam

Adjusting the start timing and frequency of this latent image creation process in both main and sub scan directions enables registration, masking and scaling of the image.

Main scan direction ... Across the paper feed direction

Sub scan direction ... Along the paper feed direction