Switch off the printer, the scanner, and the PC, and then disconnect them from
the power source prior to performing any maintenance.
HP Designjet T1100 MFP, 4500mfp, 4500 Scanner, 820 MFP Service Manual
1. Remove the Top Cover ⇒ Page 4-5.
2. If installed, remove the Camera Motor ⇒
3. Disconnect the cable from the Camera
4. Using a size 5.5 wrench, remove the three
nuts that secure the Camera Board from the
Removal and Installation