Acer 4720 Series, 4320 Series manual Finding your comfort zone, Taking care of your vision

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Finding your comfort zone

Find your comfort zone by adjusting the viewing angle of the monitor, using a footrest, or raising your sitting height to achieve maximum comfort. Observe the following tips:

•refrain from staying too long in one fixed posture

•avoid slouching forward and/or leaning backward

•stand up and walk around regularly to remove the strain on your leg muscles

•take short rests to relax your neck and shoulders

•avoid tensing your muscles or shrugging your shoulders

•install the external display, keyboard and mouse properly and within comfortable reach

•if you view your monitor more than your documents, place the display at the center of your desk to minimize neck strain

Taking care of your vision

Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive room lighting, poorly focused screens, very small typefaces and low-contrast displays could stress your eyes. The following sections provide suggestions on how to reduce eyestrain.

Eyes

•Rest your eyes frequently.

•Give your eyes regular breaks by looking away from the monitor and focusing on a distant point.

•Blink frequently to keep your eyes from drying out.

Display

•Keep your display clean.

•Keep your head at a higher level than the top edge of the display so your eyes point downward when looking at the middle of the display.

•Adjust the display brightness and/or contrast to a comfortable level for enhanced text readability and graphics clarity.

•Eliminate glare and reflections by:

•placing your display in such a way that the side faces the window or any light source

•minimizing room light by using drapes, shades or blinds

•using a task light

•changing the display's viewing angle

•using a glare-reduction filter

•using a display visor, such as a piece of cardboard extended from the display's top front edge

•Avoid adjusting your display to an awkward viewing angle.

•Avoid looking at bright light sources, such as open windows, for extended periods of time.

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Contents Users Guide TravelMate 4720/4320 SeriesPage Turning the product off before cleaning Information for your safety and comfortSafety instructions Using electrical power Product servicing Guidelines for safe battery usagePotentially explosive environments Replacing the battery packMedical devices Additional safety informationTelephone line safety Operating environmentPotentially explosive environments VehiclesMercury advisory Emergency calls Disposal instructionsTips and information for comfortable use Taking care of your vision Finding your comfort zoneDeveloping good work habits Turning your computer on and off Basic care and tips for using your computerFirst things first Your guidesTaking care of your AC adapter Taking care of your computerPlease refer to Frequently asked questions on Taking care of your battery packCleaning and servicing Xvi Contents Frequently asked questions Acer eRecovery Management Page Empowering Technology password Acer Empowering TechnologyAcer eNet Management Empowering Technology To switch between power plans Acer ePower ManagementUsing power plans To create a new power planBattery status To delete a power planAcer ePresentation Management Acer eDataSecurity Management for selected models Acer eLock Management Empowering Technology Acer eRecovery Management Empowering Technology Acer eSettings Management Windows Mobility Center for Windows Vista only Empowering Technology Description Your Acer notebook tourFront view Productivity keys on page 27 for more details Easy-launch buttons on page 26 for more detailsIcon Description Closed front view# Icon Description Left viewRear view Right viewBase view Specifications English English English Icon Function Description IndicatorsEasy-launch buttons Icon Easy-launch button Default applicationIcon Productivity key Default application Touchpad basics TouchpadFunction Left Right Main touchpad Center button Button Lock key Description Using the keyboardDesired access Num Lock on Num Lock off Lock keys and embedded numeric keypadKeyDescription Windows keysHotkeys Decreases the screen brightness US dollar sign Euro symbolSpecial keys Ejecting the optical CD or DVD drive tray Using a computer security lock Audio Adjusting the volumeAcer Bio-Protection manufacturing option Using the system utilitiesAcer GridVista dual-display compatible Launch Manager Select Tasks & Scans Norton Internet SecurityHow do I check for viruses? NTI Shadow Image is not full-screen Frequently asked questionsNothing appears on the screen Printer does not work No audio is heard from the computerKeyboard does not respond Infrared port does not workWant to set up my location to use the internal modem Before you call Requesting serviceInternational Travelers Warranty ITW Maximizing the batterys life Battery packBattery pack characteristics Installing and removing the battery pack Optimising battery life Charging the batteryChecking the battery level Situation Recommended Action Battery-low warningPreparing the computer Disconnecting from the desktopTaking your notebook PC with you Moving aroundWhat to take with you Taking the computer homeWhat to bring to meetings Special considerations Setting up a home officeTraveling with the computer What to bring with you Traveling internationally with the computerSecuring your computer Using a computer security lockUsing passwords Setting passwords Entering passwordsFax/data modem Expanding through optionsConnectivity options Fast Infrared FIR Built-in network featureIeee 1394 port Universal Serial Bus USBEjecting a PC Card PC Card slotInserting a PC Card Installing memory Bios utilityBoot sequence Playing DVD movies Enable disk-to-disk recoveryPassword Using softwareCreate backup Acer eRecovery ManagementRestore and recovery Burn backup discError messages Corrective action Troubleshooting tipsError messages English Operation conditions Regulations and safety noticesFCC notice Declaration of Conformity for EU countries Modem noticesRemarque à lintention des utilisateurs canadiens List of applicable countries TBREnglish Macrovision copyright protection notice Laser compliance statementLCD pixel statement Article 3.1b EMC Article 3.1a Health and SafetyRadio device regulatory notice General European Union EUEnglish FCC RF safety requirement English LCD panel ergonomic specifications Federal Communications Comission Declaration of Conformity EN60950-12001 EN600652002 applied to models with TV function Acer Computer Shanghai LimitedEnglish Index English

4320 Series, 4720 Series specifications

The Acer 4720 and 4320 Series laptops represent a blend of performance, portability, and affordability, making them popular choices for students and professionals alike. Released in the mid-2000s, these models were targeted towards users who required reliable computing power for daily tasks, including web browsing, document editing, and multimedia consumption.

The Acer 4720 Series is characterized by its robust performance capabilities, powered by Intel Core processors. These processors provide ample speed and responsiveness for multitasking. The 15.4-inch display offers a balanced resolution that caters to both work and entertainment, and it features Acer's CrystalBrite technology, which enhances color vibrancy and clarity, making images and videos appear more vivid.

On the other hand, the 4320 Series, a slightly more budget-friendly option, shares some similar features but comes with a 14.1-inch display. This smaller form factor makes the 4320 Series a highly portable option for users on the go. It is equipped with AMD processors, providing sufficient power for everyday tasks and decent graphical capabilities, thanks to integrated graphics.

Both series boast a comfortable keyboard and a responsive touchpad, crucial for prolonged use without discomfort. The battery life is commendable, allowing users to work on the move without constantly searching for power outlets. Additionally, the laptops come equipped with multiple USB ports, HDMI output, and card readers, enhancing connectivity options.

In terms of storage, both series typically offer a range of HDD options, providing flexibility for users needing more space for files, applications, and multimedia. The laptops also feature onboard speakers and a webcam, essential for video conferencing and casual multimedia use.

Acer's commitment to build quality is evident in these series, offering durable chassis that withstand the rigors of daily use. The 4720 and 4320 Series laptops also come pre-installed with Windows operating systems, granting users immediate access to essential productivity applications.

In summary, the Acer 4720 and 4320 Series laptops are solid choices for those in need of reliable computing tools that combine functionality and portability. With their well-rounded specifications and user-friendly features, these laptops continue to hold value even in today’s competitive market.
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