Planon System Solutions DocuPort Series DocuPen - Manual (Page 37)

Troubleshooting
Cannot Connect to the Penscanner
PenTwain message when trying to Download, or Erase:
1. Ensure cables fully inserted.
The black plastic plug should touch the silver casing.
It is also possible that you missed the timing sequence, ie; first 3 LED’s are on for 4 seconds during power on.
2.
Ensure that ports are working.
Both the Serial (com ports) & the USB ports should be checked in the Windows Device Manager. You can also try
switching ports from auto to manual. If you have both serial & USB connections try switching cables.
Important You must install the USB Driver before
attaching USB cable.
You should remove the drivers in the Windows Control Panel Add/Remove
Programs, & install fresh from the CD.
Follow instructions on Page 15 & 16.
DocuPen™ Operation Manual 37