KIP 700m - 3. 1. 2. 7 Drum Cleaning (Removal of remained toner)

K117sm3e1
3-13
3. 1. 2. 7 Drum Cleaning (Removal of remained toner)
Some amount of toner that has not been transferred onto the printing paper is remaining on the
Drum.
This remained toner will be removed by the Cleaning Roller.
The Cleaning Roller is supplied with +450V (+/-5V), and there are some negative electric charges
on the Drum at this time.
As the Cleaning Roller is relatively “positive” and the Drum is “negative”, the toner moves from the
Drum to the Cleaning Roller.
NOTE
If too much toner exists in a small area (like a trace of solid black image) the Cleaning Roller
may not be able to remove all of them.
But this toner is removed from the Drum in the Development Process.
Drum
Remained toner
Cleaning Roller
Negative
electric charges