Sony PVP-MSH Mode D'emploi page 11

Rotating the printer
This unit rotates toward about 180º in the clockwise direction.
PNote
Do not rotate this unit forcibly more than 180º in the clockwise direction. Doing
so may destroy this unit.
To remove the printer
Turn the knob in the direction of the arrow (RELEASE) to loosen, and then
pull out this unit in the direction opposite to the arrow to remove it.
0º
90º
180º
11-US