Hi Lara19 !
Just a thought.
Are you sure you have a bidirectional cable(s) .
Device that requires your PC's parallel port
to be set to EPP/ECP mode is recommended the use
of a 1284-compliant cable.
Espacially most newer printers, backup devices,
scanners, and the like require these cables.
In addition, any parallel device with an HPCN36
connector requires a 1284 cable.
If in doubt , refer the user manual of the
specific device.
To avoid problems:
Make sure that the host connection on the scanner is
connected to the PC LPT port.
And the printer connection on the scanner is connected
to printer (if you have LPT printer) .
And bios enable ECP&EPP on the LPT .
syar
Both cables 1284 commpatible.