Printer problems, Serial port problems – Lenovo M4350 Desktop User Manual

Page 51

Advertising
background image

1. Close any programs that are currently running and close any open windows.

2. Click Start Computer.

3. Right-click your C drive entry and then click Properties.

4. Click the Tools tab.

5. Click Defragment Now, then click Continue.

6. Click Defragment Now again to start a disk-defragmentation process.

On the Windows 8 operating system, do the following:

1. Close any programs that are currently running and close any open windows.

2. Open the Windows Explorer and click Computer.

3. Right-click your C drive entry and then click Properties.

4. Click the Tools tab.

5. Click Optimize.

6. Click Optimize again to start a disk-defragmentation process.

Insufficient memory

Symptom: Insufficient memory

In general, the more memory that is installed, the better the Windows operating system runs.

Action: Install additional memory.

Printer problems

Symptom: The printer does not work.

Actions: Verify that:

1. The printer is turned on and is online.

2. Paper is loaded correctly.

3. The printer signal cable is securely connected to the correct parallel, serial, or USB connector on the

computer.

Note: Non-IEEE-approved printer signal cables might cause unpredictable problems.

1. Any device drivers and other software that came with the printer are correctly installed.

2. You have assigned the printer port correctly in your operating system, application program, or BIOS

settings. For more information about BIOS settings, see Chapter 5 “Using the Setup Utility program”
on page 19.

If the problem persists, run the tests described in the documentation that comes with your printer. If you
cannot correct the problem, have the computer serviced.

Serial port problems

Use this information to troubleshoot the serial port and devices attached to the serial port.

Symptom: Serial port cannot be accessed.

Actions:

• Make sure the serial cable is securely connected to the serial port on the computer and to the serial device.

If the serial device has its own power cord, make sure it is attached to a properly grounded electrical outlet.

Chapter 7

.

Troubleshooting and diagnostics

41

Advertising