परिचय
This manual provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your Logitech K855 Wireless Mechanical Keyboard. Designed for both office and gaming use, this 84-key keyboard offers versatile connectivity and a comfortable typing experience.
सेटअप गाइड
पैकेज सामग्री
सुनिश्चित करें कि सभी वस्तुएं पैकेज में मौजूद हैं:
- Logitech K855 Wireless Mechanical Keyboard
- लोगी बोल्ट यूएसबी रिसीवर
- उपयोगकर्ता दस्तावेज़ (यह मैनुअल)
सिस्टम आवश्यकताएं
Before connecting your keyboard, ensure your device meets the following requirements:
- लोगी बोल्ट यूएसबी रिसीवर: Available USB port. Compatible with Windows 10, Windows 11 or later; macOS 10.15 or later; Chrome OS™; Linux®.
- ब्लूटूथ कम ऊर्जा: Bluetooth low energy wireless technology. Compatible with Windows 10 or later; macOS 10.15 or later; iPadOS 14.0 or later; iOS 14.0 or later; Chrome OS™; Linux; Android 8.0 or higher.
- Internet connection for downloading Logi Options+ software (optional, for advanced customization).
अपने कीबोर्ड को जोड़ना
The Logitech K855 offers two connection methods: Logi Bolt USB Receiver or Bluetooth Low Energy.
Method 1: Using the Logi Bolt USB Receiver
- Locate the Logi Bolt USB receiver in your keyboard's packaging.
- लॉजी बोल्ट यूएसबी रिसीवर को अपने कंप्यूटर पर उपलब्ध यूएसबी पोर्ट में प्लग करें।
- कीबोर्ड चालू करें। यह स्वचालित रूप से रिसीवर से कनेक्ट हो जाएगा।
Method 2: Using Bluetooth Low Energy
- अपना कीबोर्ड चालू करें.
- Activate Bluetooth on your device (computer, tablet, or smartphone).
- On your keyboard, press and hold one of the Easy-Switch keys (usually F1, F2, or F3, indicated by a Bluetooth icon) until the LED indicator starts blinking rapidly, indicating pairing mode.
- On your device, search for Bluetooth devices and select "Logitech K855" from the list.
- Follow any on-screen prompts to complete the pairing process. The LED indicator on the keyboard will turn solid when connected.

चित्र 1: शीर्ष view of the Logitech K855 keyboard, showing key layout.

चित्र 2: नीचे view of the Logitech K855 keyboard, showing the battery compartment and adjustable feet.
ऑपरेटिंग निर्देश
बुनियादी कीबोर्ड फ़ंक्शन
The Logitech K855 features an 84-key layout with standard alphanumeric keys, function keys, and navigation keys. The mechanical TTC red switches provide a smooth, linear feel for comfortable and responsive typing.
Easy-Switch Functionality
The keyboard supports connecting to up to three devices simultaneously. Use the Easy-Switch keys (typically F1, F2, F3) to seamlessly switch between your paired devices. Press the desired Easy-Switch key to instantly connect to the corresponding device.
Function Keys (Fn)
The function keys (F1-F12) can perform special actions when pressed in combination with the 'Fn' key. These actions may include media control, volume adjustment, and other system shortcuts. Refer to your device's operating system for specific Fn key functionalities.
Logi Options+ Software (Optional)
For advanced customization, download and install the Logi Options+ software. This software allows you to:
- Reassign keys to perform custom actions.
- Adjust keyboard settings.
- कनेक्टेड डिवाइस प्रबंधित करें.
- Utilize Logitech Flow with compatible mice for seamless multi-computer control.

चित्र 3: क्लोज़-अप view of the mechanical TTC red switches, highlighting the linear feedback.

Figure 4: The compact design of the K855 keyboard, suitable for various workspaces.
रखरखाव
कीबोर्ड की सफ़ाई
To maintain optimal performance and appearance, clean your keyboard regularly:
- सफाई से पहले कीबोर्ड को अपने डिवाइस से अलग कर दें।
- एक नरम, लिंट-मुक्त कपड़े का उपयोग थोड़ा साफ करेंampened with water or a mild cleaning solution to wipe down the keys and surface.
- कीबोर्ड पर सीधे कठोर रसायनों, अपघर्षक क्लीनर या तरल पदार्थ का छिड़काव करने से बचें।
- कीबोर्ड की कुंजियों के बीच फंसी गंदगी को साफ करने के लिए संपीड़ित हवा का उपयोग करें।
बैटरी प्रतिस्थापन
The Logitech K855 keyboard has a battery life of up to 36 months, depending on usage. When the battery indicator light signals low power, replace the batteries:
- कीबोर्ड बंद कर दें।
- Locate the battery compartment on the underside of the keyboard (refer to Figure 2).
- डिब्बे को खोलें और पुरानी बैटरियाँ निकालें।
- सही ध्रुवता सुनिश्चित करते हुए नई बैटरियाँ डालें।
- Close the battery compartment and turn on the keyboard.
समस्या निवारण
Keyboard Not Connecting
- शक्ति की जाँच करें: Ensure the keyboard is turned on and has sufficient battery power.
- यूएसबी रिसीवर: If using the Logi Bolt receiver, ensure it is securely plugged into a working USB port. Try a different USB port.
- ब्लूटूथ: If using Bluetooth, ensure Bluetooth is enabled on your device and the keyboard is in pairing mode (blinking LED). Remove "Logitech K855" from your device's Bluetooth list and try pairing again.
- दूरी: Ensure the keyboard is within the 10-meter wireless reception range of your device.
- दखल अंदाजी: Move away from other wireless devices or sources of interference (e.g., Wi-Fi routers, cordless phones).
कुंजियाँ प्रतिक्रिया नहीं दे रही हैं
- बैटरी: Replace the batteries if the battery indicator is low.
- कनेक्शन: Re-establish the connection (see "Keyboard Not Connecting").
- सफाई: Check for debris under the keys and clean as described in the Maintenance section.
Lag or Delayed Input
- दखल अंदाजी: Reduce wireless interference.
- दूरी: Ensure the keyboard is close to the receiver or Bluetooth device.
- बैटरी: Low battery can affect performance. Replace if needed.
विशेष विवरण
| विशेषता | विवरण |
|---|---|
| मॉडल संख्या | Logitech Signature K855 |
| आयाम (ऊंचाई x चौड़ाई x गहराई) | 138.8 मिमी x 355.2 मिमी x 38.8 मिमी |
| रिश्ते का प्रकार | Bluetooth Low Energy Wireless (Bluetooth 5.1), Logi Bolt USB Receiver (2.4Ghz Wireless) |
| वायरलेस रिसेप्शन रेंज | 10 meters (varies depending on usage environment) |
| Mechanical Key Shaft | Red shaft (linear) |
| बैटरी की आयु | Up to 36 months (varies with usage) |
| संकेतक | Caps Lock, Easy-Switch key, Battery indicator |
| वैकल्पिक सॉफ्टवेयर | Logitech Options+ (for macOS 10.15+, Windows 10/11+) |
| Logitech Flow Compatibility | Compatible with Logitech Flow-enabled mice |
| कीबोर्ड मानक | 84 Keys, Mini Keyboard |
| आवेदन | डेस्कटॉप, लैपटॉप, टैबलेट |
| इंटरफ़ेस प्रकार | यूएसबी (रिसीवर के लिए) |
| शैली | Standard, Ergonomics, Gaming, Multifunctional Keyboard |
| कलाई का सहारा | हाँ |
| भाषा | अंग्रेज़ी |
| मूल | मुख्य भूमि चीन |
वारंटी और समर्थन
उत्पाद वारंटी
Your Logitech K855 keyboard is covered by a warranty that includes:
- निशुल्क मुनाफ़ा: खरीद के 90 दिनों के भीतर नि:शुल्क वापसी की सुविधा उपलब्ध है।
- तेज़ डिलीवरी की गारंटी: In case of delayed delivery, a $1.00 coupon code may be provided. Refunds are available if the package is lost or items are damaged during transit, or if no delivery occurs within 60 days.
सुरक्षा और गोपनीयता
Logitech is committed to protecting your personal information:
- Safe Payments: Personal details are not shared with third parties without your consent.
- Secure Personal Details: Your privacy is protected, and personal details are kept safe and secure.
ग्राहक सहेयता
For further assistance, technical support, or warranty claims, please refer to the official Logitech support channels or contact your retailer.





