HP Book 4150 To check the battery status, To respond to a low-battery warning, On the Battery

Page 44

Managing Battery Power

Monitoring Battery Power

To check the battery status

From the Windows Taskbar

∙Move the pointer onto the power icon at the right end of the taskbar. If you are using Windows NT 4.0, you’ll need to install Advanced Power Management to display the power icon (see “To install APM for Windows NT 4.0” on page 43). The approximate battery charge is displayed as a percentage or in hours.

∙Double-click the power icon on the taskbar to open the Battery Meter window.

From Windows Control Panel

∙Click My Computer, Control Panel, Power. This provides access to all options associated with reporting of power information by Windows.

On the Battery

1.Remove the battery from the OmniBook (see “To replace the battery” on page 46).

2.Press the pad on the back of the battery.

The number of lights that turn on indicates the charge—each light represents 20% of a full charge.

To respond to a low-battery warning

When battery power is critically low, you are alerted by one or more of the following:

∙The computer emits a warning beep. This reminds you to save your work.

∙If the OmniBook has been off, you will not be able to turn it on.

The OmniBook automatically hibernates to preserve your current session. However, unsaved data could be affected if the battery runs down completely while writing data to the drive. You won’t be able to restart until you restore power by one of the following actions:

∙Plug in the ac adapter. –or–

Replace the main battery with one that is charged. –or–

Install a charged second battery in the plug-in module bay.

44 User’s Handbook

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Page 43 Page 45
Contents HP OmniBook User’s Handbook User’s Handbook HP Software Product License Agreement Edition History Contents Expanding the OmniBook Configuring the OmniBookTroubleshooting Index Support and ServiceSpecifications and Regulatory Information Page Introducing the OmniBook Getting More Information Description and LocationTaking Inventory Included in the OmniBook boxOmniBook Features OmniBook-Front ViewOmniBook-Side View OmniBook-Back View Setting Up for the First Time To set up the OmniBook and WindowsOr AT Their Local Microsoft Office Operating the OmniBook Starting and Stopping the OmniBook To start and stop the OmniBookTo reset the OmniBook To check power status and drive activity Checking the Status of the OmniBookUsing the OmniBook Pointing Devices To use the built-in pointing devices To extend the life of the display Using the OmniBook DisplayTo adjust the display brightness Adjusting the Audio System To adjust the volumeOn the Keyboard WindowsOmniBook Library Using the OmniBook KeyboardTo use the Fn hot keys To use the embedded keypad About Repetitive Strain Injury What is RSI?Working in Comfort What if I experience discomfort? What causes RSI?What can I do to avoid RSI? Preparing Your Work Environment Your ChairYour Work Surface Your Work PostureSetting Up Your HP Computing Equipment Your HP MonitorWorking in Comfort Your HP Keyboard Monitor Use SpecificationsDocument Holders Mice and Other Input Devices Working in Comfort General Comfort and Safety ChecklistHeadphones and Speakers Overall Preparing Your Mobile Work Environment Using Your Mobile ComputerYour HP OmniBook Computer Working in Comfort Page Managing Battery Power How Power is Managed Monitoring Battery Power To install APM for Windows NTTo check the battery status To respond to a low-battery warningOn the Battery From the Windows TaskbarTo recharge a battery Battery lifeCharging time Optimum ChargingTo replace the battery AdapterTo install a second battery Safety onPage Expanding the OmniBook Take proper action, you could lose data Using Plug-In ModulesTo install hot-swap support To replace a plug-in module Using Plug-In Modules Connecting External Devices To identify connectors for external devicesTo enable the built-in and external displays To connect an external monitorTo connect an external keyboard or PS/2 mouse To connect a printerUsing PC Cards To insert and remove a PC CardUsing PC Cards Installing a Hard Disk Drive To replace the hard disk driveInstalling a RAM Expansion Module Installing a RAM Expansion Module Configuring the OmniBook Using Bios Setup To run the Bios Setup utilityConfiguring Security Options To set or change an OmniBook passwordTo delete an OmniBook password To attach a security cable Page Troubleshooting Solving Problems Accessory ProblemsIf you can’t boot from a CD in a CD-ROM drive If a port on a dock isn’t workingIf sound is not audible Audio ProblemsIf a DVD drive locks up the computer in Windows If the OmniBook is on, but the screen is blank Display ProblemsIf sound doesn’t record If multiple display support doesn’t work in Windows If the screen is difficult to readIf an external monitor doesn’t work Hard Disk Drive Problems If the OmniBook’s hard drive doesn’t spinIf the hard disk makes buzzing or whining noise If files are corruptedKeyboard and Pointing Device Problems If a special feature on the PS/2 mouse doesn’t workIf the pointer is difficult to control If the touch pad or pointing stick doesn’t workWindows NT 4.0 does not support infrared communication If you can’t type the euro symbolIf you have problems with infrared communications Memory Problems PC Card Pcmcia ProblemsIf a message says you are out of memory If memory doesn’t increase after adding RAMIf an I/O card stops communicating properly If the OmniBook pauses or runs sluggishly Performance ProblemsIf the OmniBook gets hot Power and Battery Problems If the battery doesn’t chargeIf the OmniBook turns off immediately after it turns on If the OmniBook keeps beepingIf the OmniBook doesn’t suspend as expected If the second battery doesn’t chargeIf the OmniBook stops responding If a serial or parallel printer doesn’t print Printing ProblemsIf the OmniBook doesn’t automatically hibernate as expected Serial, Parallel, and USB Problems If an infrared printer doesn’t printIf the left edge of printed output is missing If the serial mouse doesn’t workStartup Problems If the OmniBook doesn’t boot from battery powerIf a serial modem doesn’t work properly If the USB port is not workingIf the OmniBook doesn’t boot from the floppy disk drive Testing the Operation To run the diagnostic testTo create a diagnostic floppy disk SpaceRecovering Software To recover the factory installation of Windows Page Support and Service Support Assistance Electronic Support ServicesGetting HP OmniBook Assistance Repair Assistance Customer Support CentersCentral/South America Hewlett-Packard Limited Warranty Statement Hewlett-Packard Limited Warranty Statement Specifications and Regulatory Information Hardware Specifications Bus ArchitectureRAM Environmental Limits Major ICs Safety Information Power CordsBattery Safety Laser SafetyLED Safety Regulatory Information Connections to Peripheral DevicesDeclaration of Conformity CanadaJapan International AddressIndex APMConnecting, See Reference Guide location, 14 Configuring, See Reference Guide location User’s Handbook

Book 4150 specifications

The HP Book 4150 is a versatile and powerful printer designed to meet the demands of both home and office environments. Known for its reliable performance and user-friendly features, this printer is an ideal solution for individuals and businesses that require efficient printing solutions without sacrificing quality.

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Additionally, the HP Book 4150 features a user-friendly control panel with an intuitive LCD display, making it easy to navigate settings and monitor print jobs. The printer is designed with energy efficiency in mind, meeting Energy Star certification standards, which helps to reduce overall power consumption and lower operational costs.

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In summary, the HP Book 4150 is a feature-rich printer that offers fast speeds, high-quality prints, versatile connectivity options, and an energy-efficient design. Whether for home or business use, it stands out as a reliable printing solution that meets the diverse needs of users.
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