2Route Of Toner Supply; Route Of Toner Supply - Canon iR4570 Series Service Manual

1. Care should be taken not to bump the toner stop [1] against the covers or the like when and after removing the
toner cartridge. Since the toner stop comes off easily, toner scattering may be resulted if it comes off by accident.
2. Keep the toner cartridge horizontal after removing. Since the toner stop [1] comes off easily as mentioned above,
toner scattering may be resulted if the toner cartridge is placed with the toner stop side down.

7.8.2 Route of Toner Supply

iR2270 / iR2870 / iR3570 / iR4570
When the user fits the toner cartridge [1] in place, toner is temporarily stored in the sub hopper [2], inside which is
a sensor that makes sure that the amount of toner remains at a specific level at all times. When the developing
assembly [4] requests a supply of toner, the machine rotates the feedscrew [3] to move toner from the sub hopper to
the developing assembly.
The machine's toner cartridge serves as a hopper (as found in past models).
[1]
F-7-16
Chapter 7
0006-6363
7-17