Oce Arizona 550 GT User Manual page 245

Swing the UV lamp housing interlock safety arm out of the way:
4.
[182] Interlock Safety Arm
first lift it straight up to the height of the blue connector;
then angle it away from the connector as you raise it higher; and
finally swing the arm back over the connector and past the raised part of the lamp
housing.
Note:
The UV lamp housing cannot be removed from the carriage until the bracket is swung
out of the way.
Lift the UV lamp housing straight up and out of its carriage bucket.
5.
How to Replace the UV Lamp Bulb
Attention:
Use cotton gloves when handling the UV lamp and Shutter assemblies; oil from fingers
can harm these components and shorten lamp life.
Put on protective eye wear and cotton gloves.
1.
Turn the housing upside down on a clean work space away from the printer.
2.
How to Change a UV Lamp Bulb
Chapter 11 - Printer Maintenance 245