Lenovo 8426, 8421, 8145, 8142, 8420, 8141, 8095, 8096 manual User Guide

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To clean a mouse with a ball:

1.Turn off your computer.

2.Turn the mouse over, with the top side down, and look carefully at the bottom. Twist the retainer ring1to the unlocked position to remove the ball.

3.Place your hand over the retainer ring and ball2, and then turn the mouse over, top side up, so that the retainer ring and ball fall out into your hand.

4.Wash the ball in warm, soapy water then dry it with a clean cloth. Blow air carefully into the ball cage4to dislodge dust and lint.

5.Look for a build up of dirt on the plastic rollers3inside the ball cage. This build up usually appears as a stripe running across the middle of the rollers.

6.If the rollers are dirty, clean them by using a cotton swab soaked in isopropyl (rubbing) alcohol. Turn the rollers with your finger and continue swabbing them until all the dirt is removed. Be sure the rollers are still centered in their channels after you clean them.

7.Remove any fibers from the swab that might be remaining on the rollers.

8.Replace the ball and the retainer ring.

9.Turn your computer back on.

32User Guide

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Contents User Guide Types 8095, 8096, 8141 Types 8145, 8420, 8421 Page User Guide Types 8095, 8096, 8141 Types 8145, 8420, 8421 Page Contents Iv User Guide Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devicesPlugs and outlets BatteriesCD and DVD drive safety Heat and product ventilationAdditional safety information Lithium battery noticeTo connect To disconnect Modem safety information Laser compliance statementPower supply statement Overview Information resourcesXiv User Guide Installing options FeaturesMemory Operating systems, preinstalled varies by model type Specifications Available options Tools requiredHandling static-sensitive devices Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device driversRemoving the cover Locating components Identifying parts on the system boardInstalling memory Installing options Installing adapters What to do nextWhat to do next Installing internal drives Drive specificationsInstalling a drive User Guide Connecting the first optical drive Installing security features Connecting a serial ATA hard disk drivePassword protection Changing the batteryPadlock loop User Guide Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cablesUser Guide Using the Setup Utility program Starting the Setup Utility programViewing and changing settings Using passwordsUser password Administrator passwordIDE Drive User Password IDE Drive Master PasswordSetting, changing, and deleting a password Using Security Profile by DeviceSelecting a startup device Exiting from the Setup Utility program Selecting a temporary startup deviceChanging the startup sequence Updating flashing Bios from a diskette Updating flashing Bios from your operating systemAppendix A. Updating system programs System programsRecovering from a POST/BIOS update failure Click Continue Click Downloads and driversAppendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Appendix C. Manual modem commands Basic AT commandsLow speaker volume Set Pulse dial as defaultSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Television output notice TrademarksIndex Page Page Part Number 19R0462