Logitech K845 Mechanical Illuminated Keyboard User Manual

1. Product Overview

The Logitech K845 Mechanical Illuminated Keyboard combines precise mechanical switches with a modern, durable aluminum design. It offers a comfortable typing experience with adjustable tilt and customizable white backlighting, designed for productivity in various lighting conditions on Windows operating systems.

Figure 1: Logitech K845 Mechanical Illuminated Keyboard, showcasing its full layout and sleek design.

2. Setup

2.1 Package Contents

• Logitech K845 Mechanical Illuminated Keyboard
• USB Connection Cable

2.2 Connecting the Keyboard

1. Locate the USB cable provided with your keyboard.
2. Connect the smaller end of the USB cable to the USB port on the back of the K845 keyboard.
3. Connect the larger end of the USB cable to an available USB port on your Windows computer.
4. The keyboard will automatically be detected and configured by your operating system. No additional drivers are typically required for basic functionality.

2.3 Adjustable Tilt Legs

The K845 keyboard features adjustable tilt legs to enhance typing comfort. You can choose between a flat position or an angled position (4-8 degrees) by flipping out the legs located on the underside of the keyboard.

Figure 2: Side view of the K845 keyboard demonstrating the adjustable tilt legs for ergonomic comfort.

3. Operating Instructions

3.1 Key Switch Options

The K845 keyboard is available with different mechanical key switch types, each offering a distinct typing experience:

• TTC Brown Switches: Provide a tactile bump without a loud click, offering a balance between feedback and quiet operation.
• TTC Red Switches: Offer a smooth, linear keystroke without a tactile bump or audible click, ideal for fast, fluid typing.
• TTC Blue Switches: Feature a distinct tactile bump and an audible click, providing clear feedback with each key press.

Figure 3: Illustration of the different TTC mechanical key switch types available for the K845 keyboard.

3.2 Backlighting Features

The K845 features white backlighting with 5 distinct patterns to suit your preference. Use the dedicated function keys to cycle through patterns and adjust brightness.

• To change backlighting patterns: Press Fn + F12.
• To adjust backlighting brightness: Press Fn + F11 (decrease) or Fn + F12 (increase).

Figure 4: Visual representation of the 5 backlighting patterns available on the K845 keyboard.

3.3 Full-Size Layout and FN Keys

The keyboard features a full-size layout including a dedicated number pad and a row of FN (function) keys. These FN keys provide quick access to media controls, volume adjustments, and other system functions when pressed in combination with the Fn key.

Figure 5: Detailed view of the K845's full-size layout, highlighting the FN keys and numeric keypad.

4. Maintenance

4.1 Cleaning

To maintain optimal performance and appearance, regularly clean your keyboard. Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution. Avoid harsh chemicals or abrasive materials. For debris between keys, use compressed air.

4.2 Durable Design

The K845 is constructed with a durable aluminum top case and long-life mechanical switches designed for extended use and reliability.

Figure 6: The K845 keyboard's robust aluminum top case, contributing to its longevity.

5. Troubleshooting

• Keyboard not responding: Ensure the USB cable is securely connected to both the keyboard and your computer. Try a different USB port or restart your computer.
• Backlight not working: Check that the backlighting is enabled and the brightness is adjusted using the Fn + F11/F12 keys.
• Keys typing incorrectly: Verify that your operating system's keyboard layout settings match your physical keyboard.

6. Specifications

7. 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.

Online Support: www.logitech.com/support