Sony PCG-XG28 Primary User Manual page 110

The default setting for the printer port mode is correct for most printers.
If you cannot print, try changing the printer port mode. In Sony
Notebook Setup, select the Printer tab. If the printer port mode is set to
ECP, change it to bi-directional. If the printer port mode is set to
bi-directional, change it to ECP. See "Displaying the Sony Notebook
Setup Screen" in the Customizing Your Notebook manual for details on
using Sony Notebook Setup.
Use the i.LINK connector of the computer.
Unplug the i.LINK cable and plug it again.
The operating system may become unstable if a lower power state such as
system hibernation is initiated and then changed before the operating
system completely enters the lower power state. To restore the computer
to its normal operating stability, close all open applications, push the
power button and hold it there for four seconds or more to completely
shut down the computer.