Installing additional memory > 116
4. Note the positions of the 4 cartridges.
5. Remove each image drum units, starting with the front. Cover the image drum units
to protect them from direct light.
1. Cyan cartridge 3. Yellow cartridge
2. Magenta cartridge 4. Black cartridge
CAUTION!
The green image drum surface at the base of each cartridge is very
delicate and light sensitive. Do not touch it and do not expose it to
normal room light for more than 5 minutes. If the drum unit needs
to be out of the MFP for longer than this, please wrap the cartridge
inside a black plastic bag to keep it away from light. Never expose
the drum to direct sunlight or very bright room lighting.