The Printer Does Not Work; Serial Connector Cannot Be Accessed; Software Problems - Lenovo ThinkCentre M79 Hardware Maintenance Manual
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Also See for ThinkCentre M79:
- Hardware maintenance manual (186 pages) ,
- User manual (154 pages) ,
- Safety, warranty, and setup manual (2 pages)
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• For Windows 7: Click Defragment now.
• For Windows 8.1 or Windows 10: Click Optimize. Select the desired drive, and then click Optimize.
6. Follow the instructions on the screen.
Insufficient memory
Solution: Install additional memory modules. For instructions on installing memory modules, see "Installing
or replacing a memory module" on page 108.
To purchase memory modules, go to:
http://www.lenovo.com
The printer does not work
Solutions:
• If you are using IEEE-approved printer signal cables, do the following:
1. Connect the printer signal cable firmly to the correct parallel, serial, or USB connector on the
computer.
2. Load the paper correctly.
3. Turn on the printer and keep the printer online.
• If you are using non-IEEE-approved printer signal cables, do the following:
1. Correctly install device drivers and software that come with the printer.
2. Assign the printer port correctly in your operating system, application program, or BIOS settings. For
more information about BIOS settings, see "Using the Setup Utility program" on page 63.
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 Chapter 12 "Getting information, help, and
service" on page 145.
Serial connector cannot be accessed
Solutions:
• Connect the serial cable to the serial connector on the computer and to the serial device. If the serial
device has its own power cord, attach the power cord to a grounded electrical outlet.
• Turn on the serial device and keep the device online.
• Install any application programs supplied with the serial device. Refer to the documentation that comes
with the serial device for more information.
• If you added one serial-connector adapter, install the adapter correctly.
Software problems
This section provides solutions to software-related problems.
When using a sort feature, dates cannot be sorted in the correct order
Solution: Some programs developed before the year 2000 used only the last two digits of a year to sort
dates, assuming the first two digits were 19. Consequently, dates cannot be sorted in the correct order.
Check with your software manufacturer to see if any updates are available. Many software manufacturers
make updates available from the World Wide Web.
Some application programs do not work as expected
Symptom: Software does not work as expected.
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ThinkCentre M79 Hardware Maintenance Manual
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Troubleshooting
