HP 3550 - Manual (Page 126)

3. Remove the new print cartridge from the bag. Place the used print cartridge in the bag
for recycling.
4. Grasp both sides of the print cartridge and distribute the toner by gently rocking the print
cartridge from side to side.
CAUTION Do not touch the shutter or the surface of the roller.
5. Remove the orange shipping locks and the orange shipping tape from the new print
cartridge. Discard the shipping tape and shipping locks according to local regulations.
114 Chapter 7 Maintenance ENWW