Ricoh OP-P1 Service Training page 62

 The hinge is mounted on the top of the left cover and connected
to the bottom of the flatbed unit.
 The hinge locks and holds when the top of the machine is raised.
 On machines with scanner and no ADF, the flatbed unit is raised.
 On machines with scanner and ADF, the ADF and flatbed unit are
raised together.
Slide 62
No additional notes
Flatbed Hinge Mechanism - 2
62
OP-P1/MF1 Training