Qomo Interactive whiteboard Owner's Manual page 23

Whiteboard pen is
Pen can
accurate in some
operate, but
place while have big
calibration
deviation in some
has deviation
other place
Writing stroke don‟t
Pen can
write, but accord with writing
operation operation and is
speed is slow than writing
slow operation
Cannot change pen
Something
stroke color when
wrong with
pick up or put down
pen tray
pen
Calibration is not
accurate
Projection image is not
proper
Conflict with anti-virus
software such as Rising
Computer run too many
software
Computer hardware
configuration is too low
There is dust or other
object on pen tray
Pen tray is loose or
does not connect well
to whiteboard
22
Calibrate again properly
Adjust projector
Close the monitoring of
concerned anti-virus
software
Close the software which
will not be used at
present
Contact with professional
person to upgrade
computer hardware
Clean pen tray or move
object away
Please take off and plug
pen tray, fix screws at the
bottom of pen tray