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. Remove the Main Electronics Board ⇒
3. Disconnect the cable from the board.
4. Remove two T10 screws that secure the
Removal and Installation