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4. Operation
4.1 OCR
The OCR reader operates with a broad range of swipe speeds. To maintain data integrity, very fast
swipe speeds are ignored completely and swipe speeds slightly exceeding the maximum allowed
by the ATB422/423 will result in a bad read message of 30 “*” characters, a Red light indication
from the Bi-Colour LED and 3 beeps from the sounder.
A label is attached to the slot area to assist operators/agents to the swipe direction and position of
passports and other travel documents
Operators should follow the following procedure.
Insert the document at the right hand end of the
slot, orientated with the OCR data to be read facing
the operator.
Swipe from right to left.
Continue swipe, at a steady speed, along the slot.
