Developing Process - Epson EPL-N2000 Service Manual

Operating Principles

2.1.1.3 Developing Process

Paper goes through this process to convert electrostatic image produced through the charging and
exposure processes into visible image. It is accomplished using toner and 3 bias voltages;
developingt bias, toner bias, and seal bias. Developing bias feeds toner evenly on the sleeve roller.
The amount of toner fed onto the roller is controlled by developing bias, which enables the printer
to adjust printing tones.
Developing bias
Toner bias
Seal bias
2-4
–300 V (–220 to –330 V)
–550 V
–249 bias
Figure 2-4. Developing Process
EPL-N2000 Service Manual
Rev.A