%2.4.2 Electrophotographic Process

2.4.2 Electrophotographic Process

The electrophotographic processing is outlined below. Figure 2-7 shows the electrophotographic printing process.

1Charging

The surface of the image drum is given a uniform negative charge by applying the negative voltage to the charge roller.

2Exposure

Light emitted from the LED head irradiates the negatively charged surface of the image drum. The surface potential of the irradiated portion becomes lower, forming the electrostatic latent image associated with the print image.

3 Developing and toner recovery

When the negatively charged toner is brought into contact with the image drum, it is attracted to the electrostatic latent image by static electricity, making the image visible.

At the same time, the residual toner on the image drum is attracted to the developing roller by static electricity.

4Transfer

When paper is placed over the image drum surface, the positive charge which is opposite in polarity to that of the toner, is applied to the reverse side by the transfer roller. The toner is attracted by the positive charge and is transferred onto the paper. This transfers the toner image formed on the image drum onto the paper.

5 Temporary cleaning

Residual toner, which remains on the image drum without being transferred, is evened out by the cleaning roller and is attracted to the cleaning roller by static electricity.

6Fusing

The transferred toner image is fused to the paper by heat and pressure.

Figure 2-8 shows an electrophotographic process timing chart.

OKI OL600/610ex (96-01-18

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Oki OL600E, OL610EPS manual Electrophotographic Process

OL600E, OL610E, OL610EPS specifications

The Oki OL610EPS, OL610E, and OL600E are advanced line matrix printers renowned for their high-performance capabilities and durable design. These printers are ideal for high-volume printing environments where reliability and speed are crucial. They are often employed in sectors like manufacturing, logistics, and large-scale enterprises that require efficient document processing.

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