1. Turn off the printer.
2. Lock down the brakes of the two casters at the front of optional 1000-sheet tray module.
CAUTION: Failure to lock down the brakes can cause the printer to move unexpectedly, resulting in
injury.
3. Pull the paper tray cover so that the top edge tilts out, then lift the paper tray cover off its hinges.
4. Gently pull out the tray of the optional 500-sheet tray module until it stops. Hold the tray with both hands, lift up
the front slightly and remove it from the tray module.
5. Lift the optional 500-sheet tray module and align the four guide pins of the optional 1000-sheet tray module with
the holes at the bottom of the 500-sheet tray module.
Gently lower the 500-sheet tray module onto the 1000-sheet tray module.
