Posiflex HT-4712 - Manual (Page 10)

10
3.
You will see the extended
USB port through which the
side mount upgrade kit is
connected to the POS box.
Cleaning the Front Ventilation Holes and Grids
Use vacuum cleaner to remove any
dust away from both the ventilation
holes on the front cover and
ventilation grids on chassis
exposed after removal of the front
cover.
To avoid the POS box from being damaged, we suggest you to
contact your local service center for help.