QMS Scanner - Manual (Page 45)

7-3
Question: Why sometimes pass-through printing does not
work at all?
Answer: It may be that you fail to power on the QMS
SC-100. When doing pass-through printing,
please be sure to power on the QMS SC-100.
Else, without power, the QMS SC-100 can not
transfer the printing data/signals to the printer.
Question: Why my GDI printer does not work with the
QMS SC-100?
Answer: Disable the Auto Scan function in the
application, then your printer will function in
normal working condition.