The Electrophotographic Process - Oki OKIPAGE6w User Manual

The Electrophotographic Process

The electrophotographic technology used in OKI digital LED printers and plain paper facsimile
machines is almost identical to that employed in most toner-based copying machines.
•
Charging: The first step is depositing a uniform electrical charge over the image drum.
•
Exposure: Next, the drum is exposed to light to create a latent image on its surface. The light
source is the LED array, which uses 2,560 light emitting diodes at 300 to the inch to produce
its images. The latent image retains much of the charge applied to the drum's surface during
charging. The segments of the photoreceptor drum that correspond to the non-image areas
have a reduced electrical change.
• Developing: In the development cycle, charged toner is attracted to the latent image by static
electricity, making the image visible.
•
Transfer: The paper is brought into contact with the photoreceptor drum, transferring the toner
image to the paper. The transfer process applies a charge through the paper so the toner
particles adhere to the paper rather than to the drum.
•
Fusing: heat and pressure fuses the toner to the paper to produce the final product.
Okidata's proprietary advanced LED technology, with fewer moving parts, assures built-in quality
and reliability. Okidata backs every LED technology unit with a 5-year printhead limited warranty.
OKIPAGE 6w 9