6Activating paper

As the image is being developed, a sheet of paper is transported to the photoconductor belt. The PCL board controls this activity. A series of paper pick-up, feed, and timing rollers guide the paper so the developed image is properly registered with the leading edge of the sheet.

7Transferring the image to the paper

Next, the paper contacts the surface of the photoconductor belt. Above the paper and the belt is the transfer corona, which has a high positive charge, and attracts the devel- oped image from the belt to the surface of the paper. At this point, you can remove the printed image to verify print quality, but the toner is not yet fused.

8Fusing the image to the paper

The vacuum transport unit advances the paper with the developed image to the fuser unit where heat and pressure bond the toner to the paper. The finished print then arrives at the paper output tray.

9Cleaning routine

After a print is made, the photoconductor belt must be cleaned for the next print. The belt first passes the erase lamp where any remaining latent image is erased. The belt continues to the cleaning unit where a charged brush rotates against the surface to remove any residual toner. This toner is recycled to the developer unit for reuse.

Transfer Charger Vacuum Transport

Fuser Unit

6 7

8

Paper Input

Erase Lamp

Paper Output

Toner

5

Developer Unit

Photoconductor

9 Cleaner

3

Charge Corona

4

LED Printhead

 

 

 

 

 

 

 

 

 

SI

 

 

 

 

 

 

 

Bitmap

 

 

 

 

 

Host

 

 

 

RAM

IGS

 

 

 

1

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1-1.Cycle of Operation

1-4

Printer and Troubleshooting Overview