In this step, the residual toner on the ITB is scraped by the cleaning blade of the ITB cleaning unit. The toner that has been scraped off by the blade is collected in

the waste toner case found at the front left of the machine.

7.1.9 Photosensitive Drum Cleaning Block

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880

In this block, the photosensitive drum is both physically and electrostatically cleaned (by removing residual charges) to prevent image faults otherwise caused by

soiling on the photosensitive drum or uneven charges remaining on the surface of the drum.

step 9: photosensitive drum cleaning

In this step, the toner remaining on the surface of the photosensitive drum is scraped off by the cleaning blade. The toner that has been scraped from the drum is

collected in the waste toner case found at the left front of the machine.

step 10: post-exposure

In this step, the laser light from the laser/scanner unit is directed to the surface of the photosensitive drum to free the surface from residual charges in preparation

for the next print job, thus preventing uneven density.

This mechanism is executed for every post rotation at the end of a job.

7-8

Residual toner

Tension roller

IITB cleaning blade

F-7-12

Primary transfer roller

ITB

Photosensitive drum

F-7-13

ITB