Acer AcerPower 2100 Getting Started Manual page 15

Keyboard is Dead
Is the keyboard cable plugged in? Turn off the system unit and plug in the
keyboard.
Do not plug or unplug the keyboard while the
power is on.
Printer Doesn't Work
Is the printer power turned on?
Is the printer cable connected to the correct port (serial or parallel)? Is the pin
signal interface correct?
Are your application and the printer configured for the same operating
values? Be sure there is no conflict with any port and add-on card.
Is the printer out of paper or jammed? Check the printer's status indicator
lights.
Are the printer cables tangled? To prevent signal interference, neatly fold or
coil excess cable length.
Add-on Card Fails Intermittently
Do two add-on cards have conflicting addresses?
If You Receive an Error Message
Read the corrective actions in Table 1-1 in section 1.7.
Chapter 1 - Getting Started 1-15