Oki OKIOFFICE 84 Service Manual page 443

Development
The electrostatic latent image on the surface of the image drum is changed to a visible toner image by applying a
toner to it. Development is performed in the contact part between the image drum and developing roller.
1. The sponge roller negatively charges a toner and applies it to the developing roller.
2. The toner applied to the developing roller is thin-coated by the developing blade.
3. A toner adheres to the exposure part of the image drum in the contact part between the image drum and
developing roller. This causes the electrostatic latent image to be changed to a visible image.
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Service Guide OKIOFFICE 84
Chapter B Print Operation Description
Page: 260