Maintenance & Service Guide

Presario Series

Models: 1246, 1247, 1277, 1278, and 1279

Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations

Preface

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing Compaq Presario Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario Series Portable Computers without notice.

Symbols

The following words and symbols mark special messages throughout this guide.

WAR

(918

WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.

IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.

NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information.

Technician Notes

WAR

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WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module-level repair. Because of the complexity of the individual boards and subassemblies, the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any warranty.

Serial Number

When requesting information or ordering spare parts, you should provide the computer serial number to Compaq. The serial number is located on the bottom of the computer.

Locating Additional Information

The following documentation is available to support this product:

Compaq Presario Series Portable Computer documentation set

Introducing Windows 98 Guide

Service Training Guides

Compaq Service Advisories and Bulletins

Compaq QuickFind

Compaq Service Quick Reference Guide

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HP 1277, 1278 manual Preface, Technician Notes

1278, 1277 specifications

The HP 1278 and 1277 are modern printers designed to meet the evolving needs of both home and office environments. These models feature advanced printing technologies that enhance efficiency while delivering high-quality prints.

One of the standout features of the HP 1278 and 1277 is their ability to produce vibrant, sharp images. Both models utilize HP's innovative Inkjet technology, which ensures precise ink placement for stunning photo prints and clear text documents. The printers support various media types, from standard paper to photo paper, catering to a wide range of printing needs.

Connectivity is a crucial aspect of modern printers, and HP has ensured that the 1278 and 1277 excel in this area. Both printers offer wireless printing capabilities, allowing users to print from smartphones, tablets, and laptops without the hassle of tangled cords. They support various connectivity options, including Wi-Fi Direct and mobile printing via the HP Smart app, which enhances user convenience.

Speed is another critical feature of the HP 1278 and 1277. These models are designed to handle high-volume printing tasks efficiently, boasting impressive print speeds that can significantly reduce waiting times for essential documents. The fast output does not come at the expense of quality; users can expect crisp and clear text, along with rich colors in all their prints.

In terms of user-friendliness, both models are equipped with intuitive control panels and clear LCD displays that make navigation easy. They also come with easy-to-install cartridges, enabling quick replacements, minimizing downtime, and maximizing productivity.

The HP 1278 and 1277 models also emphasize sustainability. HP has integrated EcoSmart technology into these printers, which helps reduce energy consumption and waste. Users can take advantage of HP Instant Ink, a subscription service that delivers ink cartridges to their door when supplies run low, promoting a more sustainable approach to printing.

Overall, the HP 1278 and 1277 are versatile printers that blend high performance with user-friendly features. Their combination of advanced technologies, connectivity options, speed, and quality make them ideal choices for anyone looking to enhance their printing experience, whether at home or in a professional setting. These models represent HP's commitment to delivering reliable and efficient printing solutions for diverse user needs.