Exactly as described, the full user-manual (145 pages). Perfect.
Text excerpt from page 63 (click to view)
Chapter 5 Maintenance
Replacing the Drum Unit (continued)
(4) Remove the shield tape from the recycle pipe of the drum unit.
(5) Move the recycle pipe to the RELEASE position.
5. Reinstall the developing unit. (1) Insert the developing unit into the copier main body. NOTE: When reinstalling the drum unit, align the blue mark on the unit with the blue mark on the main body.
(2) Secure the developing unit with the developing unit fixing screw. (3) Return the recycle pipe to the SET position.
