Lenovo 6423, 6493, 6483, 6449, 6439, 6427 manual Arranging your workspace, Comfort, Glare and lighting

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Chapter 2. Arranging your workspace

To get the most from your computer, arrange both the equipment you use and your work area to suit your needs and the kind of work you do. Your comfort is of foremost importance, but light sources, air circulation, and the location of electrical outlets can also affect the way you arrange your workspace.

Comfort

Although no single working position is ideal for everyone, here are a few guidelines to help you find a position that suits you best.

Sitting in the same position for a long time can cause fatigue. The backrest and seat of your chair should adjust independently and provide good support. The seat should have a curved front to relieve pressure on the thighs. Adjust the seat so that your thighs are parallel to the floor and your feet are either flat on the floor or on a footrest.

When using the keyboard, keep your forearms parallel to the floor and your wrists in a comfortable position. Use a light touch on the keyboard and your hands and fingers relaxed. Change the angle of the keyboard for maximum comfort by adjusting the position of the keyboard feet.

Viewing Distance

Lower

Back

Support

Seat

Height

Adjust the monitor so the top of the screen is at, or slightly below, eye level. Place the monitor at a comfortable viewing distance, usually 51 to 61 cm (20 to 24 inch), and position it so you can view it without having to twist your body. Also, position other equipment you use regularly, such as the telephone or a mouse, within easy reach.

Glare and lighting

Position the monitor to minimize glare and reflections from overhead lights, windows, and other light sources. Reflected light from shiny surfaces can cause annoying reflections on your monitor screen. Place the monitor at right angles to windows and other light sources, when possible. Reduce overhead lighting, if necessary, by turning off lights or using lower wattage bulbs. If you install the monitor near a window, use curtains or blinds to block the sunlight. You can adjust the brightness and contrast controls on the monitor as the room lighting changes throughout the day.

© Lenovo 2005, 2008. Portions © IBM Corp. 2005.

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Contents Page Page ThinkStation User Guide Page Contents Appendix A. Manual modem Appendix B. Notices Commands Introduction Vi User Guide Additional safety requirements for machine types 6427, 6449, Important safety informationUser Guide Glare and lighting Arranging your workspaceComfort Electrical outlets and cable lengths Air circulationConnecting your computer Setting up your computerUser Guide Setting up your computer Phone Line Setting up your computer 1394 Completing important tasks Turning on computer powerFinishing the software installation Updating your antivirus software Installing other operating systemsInstalling external options Updating your operating systemSystem information FeaturesInput/output features Operating systems, preinstalled varies by model Environment SpecificationsPC-Doctor for WINPE, PC-Doctor for Windows Software overviewSoftware provided with your Windows operating system Software provided by LenovoAdobe Acrobat Reader Using passwords Using the Setup UtilityStarting the Setup Utility program Viewing and changing settingsSelecting a startup device User PasswordAdministrator Password Setting, changing, and deleting a passwordSelecting or changing the startup device sequence Advanced settingsExiting from the Setup Utility program User Guide Attaching Sata hard disk drives Installing and configuring RAIDCreating RAID volumes Supported SAS RAID configurations Deleting RAID volumesInstalling and configuring RAID Properties Installing and configuring RAID User Guide Updating system programs Using system programsUpdating flashing Bios from a diskette or CD-ROM Updating flashing Bios from your operating system Basic troubleshooting Troubleshooting and diagnosticsDiagnostic programs PC-Doctor for DOS PC-Doctor for WindowsPC-Doctor for Windows PE Creating a diagnostic CD image Non-optical mouse Cleaning the mouseOptical mouse 1 Retainer ring 2 Ball 3 Plastic rollers 4 Ball cage Creating and using the Product Recovery disc Recovering softwarePerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To create rescue media, do the following Creating and using a Recovery Repair disketteRecovering or installing device drivers Solving recovery problems Setting a rescue device in the startup sequenceUser Guide ThinkVantage Productivity Center Getting information, help, and serviceInformation resources Online Books folderUsing the documentation and diagnostic programs Safety and WarrantyHelp and service Using other services Calling for servicePurchasing additional services Basic AT commands Appendix A. Manual modem commandsLow speaker volume Enable RTS/CTS hardware flow control Extended AT commands+MS=? MNP/V.42/V.42bis/V.44 commandsFax Class 2 commands Fax Class 1 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Trademarks Television output noticeIndex Page Using User Guide Page Part Number 43C9722