Checking presence, absence, correct position, or moving status of cards

Full Title

Conveying record carriers from one station to another, e.g. from stack to punching mechanism (conveying record carriers combined with another operation, e.g. with reading G06K17/00) > the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card > Guiding cards; Checking correct operation of card-conveying mechanisms > Checking presence, absence, correct position, or moving status of cards