Image Prosessing Section - Konica Minolta BIZHUB 25E Field Engineering Manual

2.3 Image prosessing section

The image processing is roughly divided into the following steps:
1. Charging
This step charges the drum negatively using the scorotron charger working on corona discharge
system.
2. Exposure
This step creates an electrostatic latent image on the drum surface by lighting the LED head (print
head) according to the image data.
3. Development
This step creates a visible image on the drum surface by adhering negatively charged toner on the
drum.
4. Image transfer
This step transfers the visible image on the drum surface onto the paper using a positive charged
transfer roller.
5. Separation
This step eliminates charge from paper and then separate it from the drum. The drum separation
scraper works to separate the paper from the drum.
6. Cleaning
This step cleans the residual toner and paper dust on the drum surface by scraping them off with a
cleaning blade.
7. Discharging
This step exposes light on the drum to neutralize remaining charge.
8. Fusing
This step fuses the toner transferred on the paper using heat and pressure.
Discharging
Charging
Exposure
Cleaning
OPC drum
Development
Paper path
2-9
Fusing
Separation
Image transfer