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 Guide Plate.
2. Carefully lift up the rear of the Glass Plate
at both ends.
3. Remove the Glass Plate from the Scanner.
Always clean the new glass before
Removal and Installation