TI M E - O F - D A Y C L O C K S T O P P E D The reserve battery that supports the system configuration settings may require recharging. Connect your computer to an electrical outlet to charge the battery. If the problem persists, contact Dell (see "Contacting Dell" on page 177).

TI M E - O F - D A Y N O T S E T - P L E A S E R U N T H E S YS T E M S E T U P P R O G R A M The time

or date stored in the system setup program does not match the system clock. Correct the settings for the Date and Time options (see "Using the System Setup Program" on page 187).

TI M E R C H I P C O U N T E R 2 F A I L E D A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnostics (see "Dell Diagnostics" on page 99).

U N E X P E C T E D I N T E R R U P T I N P R O T E C T E D M O D E The keyboard controller may

be malfunctioning, or a memory module may be loose. Run the System Memory tests and the Keyboard Controller test in the Dell Diagnostics (see "Dell Diagnostics" on page 99).

X :\ I S N O T A C C E S S I B L E . T H E D E V I C E I S N O T R E A D Y Insert a disk into the

drive and try again.

WA R N I N G : B A T T E R Y I S C R I T I C A L L Y L O W The battery is running out of

charge. Replace the battery, or connect the computer to an electrical outlet; otherwise, activate hibernate mode or shut down the computer.

ExpressCard Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

C H E C K T H E E X P R E S S C A R D Ensure that the ExpressCard is properly inserted into the connector.

C H E C K T H A T T H E C A R D I S R E C O G N I Z E D B Y W I N D O W S Double-click the Safely

Remove Hardware icon in the Windows taskbar. Some cards do not support this feature. If the card supports this Windows feature, the card will be listed.

I F Y O U H A V E P R O B L E M S W I T H A D E L L - P R O V I D E D E X P R E S S C A R D Contact Dell

(see "Contacting Dell" on page 177). Also, for Mobile Broadband (WWAN) ExpressCards, see "Mobile Broadband (Wireless Wide Area Network [WWAN])" on page 122.

I F Y O U H A V E P R O B L E M S W I T H A N EX P R E S S C A R D N O T P R O V I D E D B Y D E L L

Contact the ExpressCard manufacturer.

Troubleshooting

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Dell 1720 owner manual ExpressCard Problems, Drive and try again, Contact the ExpressCard manufacturer, 115

1720 specifications

The Dell 1720 and 1520 printers represent a significant milestone in the world of printing technology, catering primarily to small businesses and office settings. Both models are monochrome laser printers, renowned for their ability to deliver high-quality prints with exceptional speed and efficiency.

The Dell 1720 is designed with performance in mind, boasting a print speed of up to 33 pages per minute, making it ideal for high-volume printing environments. Equipped with a 400 MHz processor and 64 MB of memory, it ensures fast processing of complex documents, thereby reducing wait times for users. Its maximum print resolution of 1200 x 1200 dpi guarantees crisp, clear text and sharp graphics, suitable for professional presentations and reports.

On the other hand, the Dell 1520, while slightly less powerful, still offers impressive capabilities. It provides a print speed of up to 30 pages per minute and features a similar print resolution of 1200 x 1200 dpi. The compact design of the 1520 makes it a great option for businesses with limited space, while still maintaining robust performance standards.

Both printers utilize Dell's proprietary Toner Management System, which helps monitor toner levels and notifies users when it's time to order replacements. This technology aids in minimizing downtime and ensures continued productivity. The printers are compatible with a variety of operating systems including Windows and Mac OS, making them versatile solutions for diverse office environments.

Another important feature of the Dell 1720 and 1520 is their energy efficiency, thanks to Energy Star certification. This ensures that both models consume less power compared to traditional printers, making them eco-friendly choices for businesses looking to reduce their carbon footprint.

In terms of connectivity, both models come equipped with USB 2.0 ports for straightforward connections to computers. Additionally, the Dell 1720 offers optional networking capabilities with an Ethernet port, allowing for sharing across multiple users in a networked environment.

With a range of features including reliable performance, energy efficiency, and robust print quality, the Dell 1720 and 1520 remain popular choices among small to medium-sized businesses seeking dependable monochrome printing solutions.