In laser printing, toner particle size is a crucial factor determining print sharpness and image detail. Toner is not simply "black powder," but a functional material with precisely controlled particle size and distribution.

1. Finer particles result in finer images. Smaller, more uniform toner particles adhere more precisely to the photosensitive drum surface, creating finer text edges and smoother image transitions. This is especially critical for printing small text or high-resolution images.

2. Particle distribution affects uniformity. Not only average particle size, but also uniform particle distribution is equally important. Excessive particle size variation can lead to uneven development, increased background gray, or unstable black levels.

3. Overly fine particles may also pose risks. Excessively fine toner, if not properly controlled for flowability, may increase the risk of flyaways or background gray. Therefore, a balance must be struck between particle size and formulation.

Ideal toner should possess a fine and uniformly distributed particle structure while maintaining good flowability and stability.

ACO-compatible toners use a rigorously selected and tested toner formula that strikes a balance between print sharpness and stability, ensuring every print is clear and sharp.