HP Color LaserJet 3800 Printer series - Manual (Page 126)

To change the print cartridge
1. Open the front door.
CAUTION Do not place anything on the transfer unit and do not touch the transfer unit,
which is located on the inside of the front door.
2. Remove the used print cartridge from the printer.
3. Remove the new print cartridge from the bag. Place the used print cartridge in the bag for recycling.
112 Chapter 7 Maintenance ENWW