HP OmniBook 2000 User Manual page 14

ALT GR key
If your keyboard has an ALT GR key to the right of the spacebar, hold that key to
type the characters printed at the bottom-right corners of keys. For keys that have
four characters, hold SHIFT and ALT GR to type the upper-right characters.
¬
SHIFT
'
Unshifted
ALT GR
14