Phaser 6121MFP Service Manual 8-39
Service Parts Disassembly
18. Pull out the harnesses and remove the Scanner.
Thread the harnesses through the second harness guide before putting the 
scanner back on the printer.
When replacing the scanner, you must transfer the following parts from the 
old assembly to the new scanner before reinstallation:
•ADF
• Spring Mechanism
•Exit Chute
ADF Unit
PL1.1.6
1. Remove the scanner unit (page 8-31).
2. Remove 2 screws (silver, tap, 10 mm).