OMR (optical mark reader)

Track distance: 4.23mm (5.08mm, 7.00mm)

Tolerance: Cutting+/-0.2mm

Marking tools: Pencil read head: Pencils and carbon pen

Pen read head: Pencils, pens, ball-point; Pens (non-red, non-white)

Size of mark: 2mm*1mm

Error rate: less than 1*10^-7

Double-sheet rate: less than 1*10^-4

Check rate: less than 1*10^-4

Mark choice: Single choice, multiple choice and BCD code

Format: 26 kinds, each has 256 commands at most

Bar code: 128 code, 39 code and 25 code

Communicate interface: RS232 serial and USB interface

Host: PC 586 or faster, notebook PC

Weight: 8kg

Operating system: Win2000 or Win XP

Power supply: AC100-240V, 50-60Hz

Packing size: 560mm*170mm*400mm

Environment: Temperature 0-40 C, humidity90%, no erosive gas