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Lenovo ThinkCentre M83z User Manual
Also see for ThinkCentre M83z: Maintenance manual
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Note: Avoid spraying cleaner directly onto the keyboard.Optical mouseThis section provides instructions on how to clean an optical mouse.An optical mouse uses a light-emitting diode (LED) and an optical sensor to navigate the pointer. If thepointer on the screen does not move smoothly with the optical mouse, you might need to clean the mouse.To clean an optical mouse, do the following:1. Turn off your computer.2. Disconnect the mouse cable from the computer.3. Turn the mouse upside down to check the lens.a. If there is a smudge on the lens, gently clean the area with a plain cotton-tipped swab.b. If there is debris in the lens, gently blow the debris away from the area.4. Check the surface on which you are using the mouse. If you have a very intricate picture or patternbeneath the mouse, it may be difficult for the digital signal processor (DSP) to determine changesin the mouse position.5. Reconnect the mouse cable to the computer.6. Turn your computer back on.Display screenDust buildup compounds problems associated with glare. Remember to clean your monitor screenperiodically. See “Cleaning a flat-panel monitor surface” on page 57 or “Cleaning a glass-screen surface”on page 57.Cleaning a flat-panel monitor surfaceIf you have a flat-panel computer display that has a flexible film surface, do the following to clean the specialsurface. Wipe it gently with a soft, dry cloth, or blow on the screen to remove grit and other loose particles.Then moisten a cloth with liquid crystal display (LCD) cleaner and wipe the screen surface.Many computer supply stores carry the special cleaning fluids for displays. Use cleaning fluids developed forLCD displays only. First apply the fluid to a lint-free, soft cloth, then clean the LCD display. Some computersupply stores carry pre-moistened towelettes for LCD maintenance.Cleaning a glass-screen surfaceTo clean a glass-screen surface, wipe it gently with a soft, dry cloth, or blow on the screen to remove grit andother loose particles. Then use a soft cloth moistened with a nonabrasive liquid glass cleaner.Good maintenance practicesBy performing a few good maintenance practices, you can maintain good computer performance, protectyour data, and be prepared in case of a computer failure.• Empty your recycle bin on a regular basis.• Run the Windows Disk Defragmenter program occasionally to prevent performance problems caused byan excessive number of fragmented files.• Clean out your Inbox, Sent Items, and Deleted Items folders in your e-mail application on a regular basis.• Make backup copies of critical data on removable media memory at regular intervals and store theremovable media in a safe location. The frequency of making backup copies depends on how critical thedata is to you or your business. Lenovo makes a number of removable-media storage devices availableas options, such as CD-RW drives and recordable DVD drives.Chapter 9. Preventing problems 57 |
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