Canon iR3570 Series, Service Manual

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Chapter 7
7-8
7.8 Toner Container
7.8.1 Overview
0006-6323
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
The toner cartridge is constructed as shown in the following figure. The cartridge is filled with 1-component insulating magnetic toner (if iR3570/4570, 1220 g; if
iR2270/2870, 1060 g). When the sub hopper requests a supply of toner, the cartridge itself rotates to feed toner. The machine's toner cartridge serves as a hopper
(as it is found in past models).
iR3570 / iR4570
F-7-14
iR2270 / iR2870
F-7-15
Points to Note on Handing the Toner Cartridge
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.
F-7-16
7.8.2 Route of Toner Supply
0006-6363
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
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
[1]