Developing stage
Print cartridge
Step 3: In the print cartridge, the developing cylinder comes in contact with the photosensitive drum to deposit toner onto the electrostatic latent image.
Figure
Blade
Developing roller
Exposed area | Unexposed area | Developing bias | |
Unexposed area | Exposed area | ||
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Photosensitive drum
Toner acquires a negative charge from the friction that occurs when the developing roller rotatesagainst the developing blade. The developing bias is applied to the developing roller to make a potential difference between the developing roller and the photosensitive drum. The negatively charged toner is attracted to the latent image on the photosensitive drum because the drum surface has a higher potential.
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