Olivetti C3520MFP User Manual page 94

3. Press the cover release (a) and open the top cover of the
printer (b) fully.
4. Note the positions of the 4 cartridges/toner cartridges.
It is essential that they go back in the same order
1. Cyan cartridge
3. Yellow cartridge
2. Magenta cartridge
4. Black cartridge
Maintenance > 93
b
a
1
2
3
4