English to Russian Tech/Engineering Computers: Hardware

Your scanner should be placed either on the specially designed stand-alone floor stand
or on a sturdy table. Make sure there is enough space behind the scanner to allow the
media to run out.

Доброго времени суток! Не могу выразить по-русски "to allow the media to run out". Есть какие-нибудь идеи?
Взято из инструкции к сканеру, модель Contex IQ 4400.