Lenovo ThinkCentre M72z Hardware Maintenance Manual (HMM) for ThinkCentre M72z - Page 55

Printer problems, Serial port problems, Excessive number of fragmented files

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• Clean out your Inbox, Sent Items, and Deleted Items folders from your e-mail application. The folder names and procedures vary depending on your e-mail application. If you need assistance, see the help system for your e-mail application. Excessive number of fragmented files Symptom: Excessive number of fragmented files Action: Run the Windows Disk Defragmenter program. Note: Depending on the size of the hard disk drive and amount of data currently stored on the hard disk drive, the disk defragmentation process might take up to several hours to complete. On the Windows 7 operating system, do the following: 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. Printer problems Printer is supported by some certain computer models. 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 6 "Using the Setup Utility program" on page 53. 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. See "Additional information resources" on page 31. Serial port problems Serial port is available with some certain computer models. 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 5. Troubleshooting and diagnostics 49

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•
Clean out your Inbox, Sent Items, and Deleted Items folders from your e-mail application. The folder
names and procedures vary depending on your e-mail application. If you need assistance, see the
help system for your e-mail application.
Excessive number of fragmented files
Symptom: Excessive number of fragmented files
Action: Run the Windows Disk Defragmenter program.
Note:
Depending on the size of the hard disk drive and amount of data currently stored on the hard disk
drive, the disk defragmentation process might take up to several hours to complete.
On the Windows 7 operating system, do the following:
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.
Printer problems
Printer is supported by some certain computer models.
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 6 “Using the Setup Utility program”
on page 53.
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. See “Additional information resources” on page 31.
Serial port problems
Serial port is available with some certain computer models.
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 5
.
Troubleshooting and diagnostics
49