HP 900US, 955AP Is an External Device Not Working?, Are You Using All Available Documentation?

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Troubleshooting

Is an External Device Not Working?

If an external device does not function as expected:

Turn on the device as instructed in the device documentation. Some devices, such as external monitors, printers, and devices connected to the parallel connector, must be turned on before the notebook us turned on.

Verify that:

All device connections are secure.

The device is receiving electrical power.

The correct device drivers are installed.

Install the latest available system ROM. For instructions, see the Software Guide, “Software Updates and Restorations” section, on the Documentation Library CD.

Are You Using All Available Documentation?

To access the current procedures for using the hardware and software on your notebook:

See Chapter 2, “Beginning to Use the Notebook,” in this guide for information about using the Documentation Library CD. The CD provides information about Compaq hardware or software and about connecting or installing optional devices or software.

See Windows Help for information about the operating system. To access Windows Help, select Start > Help. For more information, which is available in limited languages, visit the Microsoft Web site at:

http://www.microsoft.com

See Help within most applications and utilities for information about using a specific application or utility. To access Help, open the software, then select the Help option. The Help option is often a button or menu item that is labled Help or identified with a question mark icon.

Getting Started

3-5

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Contents Getting Started Page Using This Guide Style Explanation Text StylesFollowing a Path Paths and ViewsChoosing a View Mode Contents Index Setting Up the Hardware Setting Up the NotebookInstalling the Battery Pack Connecting the Notebook to External Power Opening the Notebook Turning On the Notebook Turning Off the Notebook Setting Up the SoftwareUsing the Notebook Safely Getting Started Beginning to Use the Notebook Selecting Regional SettingsSelecting Screen Settings Protecting the Notebook Against Viruses Installing Software in Windows XP Professional Installing Optional SoftwareInstalling Software in Windows XP Home To insert the Documentation Library CD Accessing Notebook DocumentationDisplaying the Documentation Library Menu Opening the Documentation Library CDFor Information About These Topics Select This Guide Using the Documentation Library CDTravel Selecting a GuideTroubleshooting Is the Notebook Receiving Power? Quick Solutions ChecklistIs the Notebook in Standby or Hibernation? Is the Notebook Turned On?Is the System Unresponsive? Is the Notebook Overheated?Is an External Device Not Working? Are You Using All Available Documentation?Is Software Functioning Abnormally? Preparing to Call Technical Support Contacting CompaqTaking the Notebook to a Service Provider Display Components Identifying External HardwareDisplay Components Pointing Device Components Pointing Device ComponentsTop Components Power LightsTop Components Power Lights Top Components Keyboard and Drive Lights Keyboard and Drive LightsTop Components Power and Volume Controls Power and Volume ControlsTop Components Easy Access Buttons and Keyboard Keys Easy Access Buttons and Keyboard KeysTop Components Function and Keypad Keys Function and Keypad KeysFront Panel Components Front Panel ComponentsRear Panel Components ConnectorsRear Panel Components Connectors Rear Panel Components Vents and Jacks Vents and JacksLeft Side Components Left Side ComponentsRight Side Components Right Side ComponentsUnderside Components Memory and Mini PCI Compartments Underside ComponentsMemory and Mini PCI Compartments Underside Components Labels LabelsAdditional Standard Components Documentation and Restore CDsAdditional Standard Components Cord and Cables Cord and CablesAdditional Standard Components Adapters and Accessories Adapters and AccessoriesIndex Index Maintenance, Shipping Modem and Networking Troubleshooting guide 2-8,4-15 turning off the notebook Booklet
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911DE, 912EA, 900US, 901EA, 905AU specifications

The HP 1570AP, 1520CA, 950AP, 925EA, and 902AU are a series of advanced devices from HP, offering a combination of technology and features tailored for enhanced user experience across various applications. These devices boast robust performance characteristics, making them suitable for both professional and personal use.

The HP 1570AP is particularly notable for its high-speed printing capability, making it an excellent choice for businesses with high-volume printing needs. It features an advanced ink management system that optimizes ink usage, leading to cost efficiency without compromising on print quality. Additionally, the 1570AP integrates wireless connectivity, enabling users to print from mobile devices and laptops effortlessly.

The HP 1520CA stands out with its compact design and multipurpose functionality, featuring printing, scanning, and copying capabilities. It supports various media sizes, providing versatility for both standard and creative printing tasks. With HP's Smart App technology, users can easily manage print jobs and access cloud services, enhancing productivity on the go.

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In conclusion, each model within the HP 1570AP, 1520CA, 950AP, 925EA, and 902AU series is engineered with distinct features and technologies aimed at meeting the diverse needs of users, from businesses to home offices. With their innovative designs and capabilities, these printers serve as reliable tools for enhanced productivity and creativity.