HP 4020 HP Designjet 4020 Printer series - Assembly Instructions: English - Page 11

77 78 79 80 Using the blue handle, gently disengage the setup printhead from the carriage. Lift the setup printhead until it is released from the carriage assembly. Then remove the other setup printheads. Remove the blue protective cap and the clear protective tape from the printhead. Lower all the printheads vertically into their correct positions. 81 82 83 84 Seat the printheads slowly and carefully. Make sure the printheads are correctly seated. When all the printheads are installed, the front panel prompts, "Close printhead cover and window". If "Reseat" is displayed on the front panel, check that the protective tape has been removed. Then try reseating the printhead more firmly. If the problem persists, refer to the Using Your Printer CD. Close the carriage assembly cover.