Canon imageRUNNER ADVANCE C3500 III Series Service Manual page 1036

5.
NOTE:
Be sure to insert the Toner Cartridge horizontally with your
hand supporting its bottom until approx. half of it is
inserted.
6.
7.
< Installing the Toner Cartridge (Countries other than
China, and Korea) >
1.
2.
Repeat steps 3 to 6 for each color.
3.
Unpack the Toner Cartridge.
4.
1014
9. Installation