... accuracy: horizontal<=5%,Vertical<=5% 7. Scanning mode: B, 2B, 4B, B/M, M 8. 28 Grades depth adjustment under full ... (4 levels), Left/right, positive/negative, vertical, horizontal flip and B/W conversion, edge enhancement (4 levels), etc.17. 16 stages sound ... range, etc. 23. Silicon Rubber Keyboard with background light 24. Puncture guideline (2 guidelines can be calibrated, angel and position are ...