Values:
ORIENTATION_UNSPECIFIED (0):
Unspecified orientation.
PAGE_UP (1):
Orientation is aligned with page up.
PAGE_RIGHT (2):
Orientation is aligned with page right.
Turn the head 90 degrees clockwise from upright
to read.
PAGE_DOWN (3):
Orientation is aligned with page down.
Turn the head 180 degrees from upright to read.
PAGE_LEFT (4):
Orientation is aligned with page left.
Turn the head 90 degrees counterclockwise from
upright to read.