HP Color LaserJet Enterprise flow M880 Multifunction Printer series - Manual (Page 35)

Load the 3x500-sheet trays
Use the following information to load paper in any of the trays in the 3x500-sheet feeder.
1. Open the tray.
NOTE: Do not open this tray while it is in use.
2. Adjust the paper-length and paper-width guides
by squeezing the adjustment latches and sliding
the guides to the size of the paper being used.
3. For any of the following paper sizes, also adjust
the blue paper-stop lever in the left rear corner
of the tray to the correct position, as indicated by
the label in the tray:
● 12 x 18
● RA3
● 11 x 17
● A3
● SRA3
ENWW Load the 3x500-sheet trays 25