Wasp WPS100 Product Reference Manual page 25

Scanning
A rastering, 100-line, omni-directional scan pattern provides rapid, orientation-free
scanning. This scan pattern can be used in either hands-free or hand-held mode.
(on table-top)
(with stand)
Figure 2-5. Hands-Free Mode
Figure 2-6. Hand-Held Mode
2-5