Avision AV626C - Manual (Page 35)

7-3
Question: Why sometimes pass-through printing does
not work at all?
Answer: It may be that you fail to power on the
scanner. When doing pass-through
printing, please be sure to power on the
scanner. Else, without power, the scanner
can not transfer the printing data/signals to
the printer.
Question: Why my GDI printer does not work with
the button scanner?
Answer: Disable the Auto Scan function in the
application, then your printer will function
in normal working condition.