The following models can be connected to a PC:

• KX-F1050, KX-F1150, KX-FM106, KX-FM205, KX-FM210, KX-FM220, KX-FMC230, KX-FM260, KX-FM280:
  Multi-function Center only
  Windows 3.1, Windows 95, Windows 98/98se, Windows ME
  
  Pana-Link (serial version)
  Windows 98/98se, Windows ME, Windows 2000/Pro, Windows XP (home & Pro)
  
• KX-F1600
  Printer driver
  Windows 3.1, Windows 95, Windows 98/98se
  
  Canon Driver (BJC-4000) should work with:
  Windows ME, Windows 2000/Pro, Windows XP (home/Pro)
  
• KX-FLM600/650
  Pana-Link (Parallel version)
  Windows 3.1, Windows 95, Windows 98/98se, Windows ME
  
  Printer Driver
  Windows 2000/Pro, Windows XP (home/Pro)
  
• KX-FLM551, KX-FLB751, KX-FLB756
  Multi-Function station
  Windows 95,Windows 98/98se, Windows ME, Windows 2000/Pro, Windows XP (home/Pro)

Drivers can be found here.