JEOL JSPM-5200 Instructions Manual page 57

4 PREPARATION FOR OBSERVATION
• Is the cantilever set at a proper angle on the cantilever holder ?
CAUTION
Although the focus of the laser beam has been adjusted in the
factory before shipment, the beam may be out of focus for some
reason. If so, readjust the beam focus referring to Chapter 7,
"MAINTENANCE."
TMPM5200-2 4-13