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Figure4- 13 Fast Calibration
Gradually raise the device, after calibrating the vertical direction, perform
45-degree calibration on the right side, tilt the scanner to the right by about 45
degrees, and keep the laser beam between the fourth and fifth line markers to
make the shadow Coincident, as shown in Figure 4-14.
Figure4- 14 Fast Calibration
After the right side calibration, perform the left 45 degree calibration, tilt the
scanner to the left by about 45 degrees, and the laser beam is kept between the
fourth line and the fifth line mark point, so that the shadows coincide, as shown