Logitech Wireless Illuminated Keyboard K800

1. Introduction

This manual provides detailed instructions for setting up, operating, and maintaining your Logitech Wireless Illuminated Keyboard K800. Designed for comfortable and efficient typing, this keyboard features laser-etched backlit keys, a PerfectStroke system, and reliable wireless connectivity.

2. Product Overview

Figure 1: Top view of the Logitech K800 Wireless Illuminated Keyboard, showcasing the full QWERTY layout with numeric keypad and function keys.

Figure 2: Angled view of the Logitech K800, highlighting its slim profile and integrated wrist rest.

2.1 Key Features

• Illuminated Keys: Laser-etched backlit keys with automatic brightness adjustment based on ambient light and proximity sensors.
• PerfectStroke System: Ensures comfortable, fluid, and whisper-quiet typing.
• Wireless Connectivity: Utilizes a Logitech Unifying receiver for a reliable 2.4 GHz wireless connection.
• Efficient Power Management: Rechargeable battery with automatic power-saving features.
• Full-Size Layout: 102-key QWERTY layout with a dedicated numeric keypad.
• Integrated Wrist Rest: Provides ergonomic support for extended typing sessions.

3. Setup

3.1 What's in the Box

Upon unboxing your Logitech K800 keyboard, you should find the following items:

• Logitech Wireless Illuminated Keyboard K800
• Logitech Unifying USB Receiver
• Micro-USB Charging Cable
• USB Extender Cable
• User Documentation

3.2 Connecting the Keyboard

1. Locate the Logitech Unifying USB Receiver.
2. Plug the Unifying USB Receiver into an available USB port on your computer. For optimal signal, use the included USB extender cable if the computer's USB port is not in direct line of sight with the keyboard.
3. Turn on the keyboard using the ON/OFF switch located on the top right side of the keyboard.
4. Your computer should automatically detect and install the necessary drivers. The keyboard is ready for use once detected.

3.3 Charging the Keyboard

The Logitech K800 keyboard features a rechargeable battery. To charge:

1. Connect the micro-USB end of the charging cable to the port on the top edge of the keyboard.
2. Connect the standard USB-A end of the charging cable to a USB port on your computer or a USB wall adapter.
3. The battery indicator lights on the keyboard will show charging status. A full charge typically takes 3 to 6 hours.
4. The keyboard can be used while charging.

4. Operating Instructions

4.1 Backlight Control

Figure 3: Close-up view of the backlit number pad keys, illustrating the clear illumination.

Figure 4: Hands positioned for typing on the Logitech K800, demonstrating the ergonomic design and key illumination in use.

The K800 features intelligent backlighting:

• Automatic Adjustment: Proximity sensors detect your hands and automatically turn the backlight on or off to conserve battery.
• Manual Adjustment: Use the dedicated function keys (F5 and F6, often combined with the Fn key) to manually adjust the brightness of the backlight to suit your preference.

4.2 Function Keys and Hotkeys

The keyboard includes a row of function keys (F1-F12) that double as hotkeys for various media and system controls. To activate the hotkey function, press and hold the Fn key (located near the bottom right of the main keyboard section) and then press the desired function key.

4.3 Customizing Keys (Logitech Options Software)

For advanced customization of certain keys, you can download and install the Logitech Options software from the official Logitech website. This software allows you to reassign functions to specific keys, though customization options may be limited to predefined presets.

5. Maintenance

5.1 Cleaning

To maintain the performance and appearance of your keyboard:

• Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe down the keys and surfaces.
• Avoid using harsh chemicals, abrasive cleaners, or solvents.
• For debris between keys, use compressed air.

5.2 Battery Care

• Charge the keyboard regularly to maintain battery health.
• Avoid extreme temperatures, as they can affect battery life.
• If storing the keyboard for an extended period, ensure it is partially charged (around 50%) and turn it off.

6. Troubleshooting

6.1 Connectivity Issues

• Ensure the Unifying receiver is securely plugged into a USB port.
• Verify the keyboard is turned ON.
• Try plugging the Unifying receiver into a different USB port or using the USB extender cable to improve signal.
• If issues persist, try re-pairing the keyboard with the Unifying receiver using the Logitech Unifying Software (downloadable from Logitech's website).

6.2 Backlight Not Working

• Check the battery level. The backlight may dim or turn off if the battery is low.
• Ensure your hands are approaching the keyboard to trigger the proximity sensors.
• Manually adjust the backlight brightness using Fn + F5/F6.

6.3 Keys Not Responding

• Recharge the keyboard.
• Ensure the keyboard is connected via the Unifying receiver.
• Clean around the affected keys to remove any debris.

7. Specifications

8. Warranty and Support

For warranty information and technical support, please visit the official Logitech support website or refer to the warranty card included with your product. You can also find additional resources, FAQs, and driver downloads on their website.

Note: Product specifications and features are subject to change without notice.