To change the print cartridge

1. Lift the front door handle and pull down 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.

   

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.

   

6. Align the print cartridge with the tracks inside the printer, and using the handle, insert the print cartridge until it is firmly seated.

   

7. Firmly close the front door.

   

   After a short time, the control panel should display Ready.

   NOTE	If a cartridge is in the wrong slot or the wrong type for the printer, the control panel will display the message INCORRECT <COLOR> CARTRIDGE or Incorrect supplies.

8. Installation is complete. Place the used print cartridge in the box in which the new cartridge arrived. See the enclosed recycling guide for recycling instructions.

9. If you are using a non-HP print cartridge, check the printer control panel for further instructions.

For additional help, go to http://www.hp.com/support/clj3550 for the HP Color LaserJet 3550 series printer or to http://www.hp.com/support/clj3700 for the HP Color LaserJet 3700 series printer.