14
write under writing
mode
background color
Pen can
operate, but
calibration
has deviation
Whiteboard pen is
accurate in some
place while have big
deviation in some
other place
Calibration is not
accurate
Calibrate again properly
Projection image is not
proper
Adjust projector
Pen can
write, but
operation
speed is
slow
Writing stroke don’t
accord with writing
operation and is
slow than writing
operation
Conflict with anti-virus
software such as Rising
Close the monitoring of
concerned anti-virus
software
Computer run too many
software
Close the software which
will not be used at
present
Computer hardware
configuration is too low
Contact with professional
person to upgrade
computer hardware
Something
wrong with
pen tray
Cannot change pen
stroke color when
pick up or put down
pen
There is dust or other
object on pen tray
Clean pen tray or move
object away
Pen tray is loose or
does not connect well
to whiteboard
Please take off and plug
pen tray, fix screws at the
bottom of pen tray