51To scan betterBefore scan operation• Remove dirt, dust or iron powder, if any, on the surface to be scanned.• Scans cannot be done correctly if the surface to be scanned is wet. Makesure the surface is dry.• If the surface to be scanned has large projections, they may interfere withthe scanner's scan operation.To scan more accurately• If masking tape or such is used onthe scanning path, it serves as ascanning aid, for example, by givingyou a guide mark to help you movethe scanner more accurately orgiving a guide mark when you makemarkings for the estimated locationsof buried objects.• The illumination of the guide laserhelps you scan correctly by givingyou a guide mark to move thescanner straight.1. Masking tape2. Guide laserOperation in dark placesTurn on the light when you scan in darkplaces.12Operation