Removal and Installation
Elevation Motor Driver Board
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. Open the Top Profile.
2. Remove the rule from the front of the Guide
3. Close the Top Profile.