Dell PowerEdge 2450 Installation And Troubleshooting Manual page 47

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5. Run the parallel printer's self-test.
Did the self-test run successfully?
Y es. Go to step 6.
No. The printer is probably defective. If the printer was purchased from Dell, see
Chapter 11, "Getting Help," for instructions on obtaining technical assistance.
6. Attempt another print operation on the parallel printer.
Did the print operation run successfully?
Y es. You have fixed the problem.
No. See Chapter 11, "Getting Help," for instructions on obtaining technical
assistance.

     
If the procedure in "Troubleshooting the Basic I/O Functions" found earlier in this
chapter indicates that the problem is with a device connected to one of the serial
ports, perform the following steps:
1. Turn off the computer and any peripheral devices connected to the serial ports.
Are two serial devices connected to the computer?
Y es. Go to step 2.
No. Go to step 4.
2. Disconnect the devices from serial ports 1 and 2, and connect the malfunctioning
serial device to the opposite port.
3. Turn on the computer and the reconnected serial device.
Is the problem resolved?
Y es. The serial port may be defective. See Chapter 11, "Getting Help," for instruc-
tions on obtaining technical assistance.
No. Go to step 4.
4. Swap the interface cable that connects the device to the serial port with a known
working cable.
Is the problem resolved?
Y es. The interface cable must be replaced. See Chapter 11, "Getting Help," for
instructions on obtaining technical assistance.
No. Go to step 5.
Checking the Equipment 6-5