Sharp PC-A800 Series Manual page 91

Question: Why doesn't the glide pad function correctly?
Confirm the surface of the glide pad is completely dry and free from dirt and
grease.
Confirm the item PS/2 Mouse in the Main menu of the setup utility is enabled.
Trouble with Peripherals
Question: Why don't expansion or peripheral devices function?
Confirm they are correctly connected to your computer.
Confirm if drivers necessary for operating ports on the devices are installed.
There may not be a free IRQ (Interrupt). Free up an IRQ from a built-in device.
Question: Why can't I print?
Make sure the printer is turned on.
Check whether the printer is connected correctly.
Check whether the printer has enough paper.
Check whether the printer driver is installed.
Make sure Parallel Port in the Advanced menu of the setup utility is set correctly.
From the Start menu, select Settings - Printers to confirm your printer is installed
here. If not, click Add Printer to install your printer.
See also the Windows Help.
Question: Why doesn't the device connected to the RS-232C serial port
(only on the optional port replicator) function?
Confirm the device is correctly connected to the port replicator with an
appropriate cable.
Confirm the port replicator unit is connected correctly.
Confirm the application program is compliant with the RS-232C standard
interface.
Confirm the COM1 port is not disabled using the following procedure.
1. In the System Properties dialog box, select Device Manager.
2. Double-click Ports(COM&LPT); then, Communications Port (COM1).
3. Make sure the item Disable in this hardware profile is unchecked.
Confirm the COM 1 port is not used by another applications.
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