1. Kurulum
This section guides you through the initial setup of your Logitech Signature Comfort M840 L Wireless Mouse.
1.1. Pil Kurulumu
Your mouse comes with one AA alkaline battery pre-installed. To activate the mouse, remove any protective pull-tabs from the battery compartment. If replacing the battery, open the battery compartment cover located on the underside of the mouse, insert one AA battery with the correct polarity, and close the cover.

Görüntü: Üst ve alt view of the M840 L mouse, highlighting the battery compartment and indicating a 24-month battery life.
1.2. Farenizi Bağlama
The M840 L mouse connects wirelessly via Bluetooth. No USB dongle is required.
- Güç Açık: Ensure the mouse is powered on using the switch on the bottom.
- Eşleştirme Modunu Etkinleştir: Press and hold the Easy-Switch button (usually located on the bottom or side of the mouse) until the LED indicator starts blinking rapidly. This indicates the mouse is in pairing mode.
- Cihaz Eşleştirme: On your computer or device, navigate to Bluetooth settings and select 'Add a device' or 'Pair new device'. Choose 'Logitech M840 L' from the list of available devices.
- Onay: The LED indicator on the mouse will turn solid for a few seconds, then turn off, confirming a successful connection.

Resim: Bir overview of the M840 L mouse highlighting its key features including Bluetooth connectivity.
1.3. Multi-Device Pairing (Easy-Switch)
The M840 L supports connecting to up to three devices simultaneously using the Easy-Switch feature.
- Pair First Device: Follow the steps in 1.2 to pair your first device.
- Kanal Değiştir: Press the Easy-Switch button briefly to switch to an unoccupied channel (e.g., if channel 1 is used, switch to 2 or 3). The LED for the selected channel will blink slowly.
- Pair Second/Third Device: Press and hold the Easy-Switch button for the new channel until its LED blinks rapidly, then pair with your second device as described in 1.2. Repeat for a third device if needed.
- Cihazlar Arasında Geçiş: To switch between paired devices, simply press the Easy-Switch button briefly to select the desired channel.

Image: A user seamlessly switching between a laptop and a desktop setup using the Easy-Switch feature of the M840 L mouse.
1.4. Yazılım Kurulumu (Logi Options+)
For full customization of buttons and advanced features, download and install the Logi Options+ software from the official Logitech website. This software is compatible with Windows and macOS.
Video: An official Logitech video demonstrating the customizable buttons and SmartWheel scrolling features of the Signature Comfort M840 L mouse.
2. Kullanım Talimatları
Learn how to use the various features of your M840 L mouse for optimal productivity.
2.1. Temel İşlevler
- Sol tık: Birincil seçilim ve aktivasyon.
- Sağ tık: Bağlamsal menülere erişim sağlar.
- Orta Tıklama (Fare Tekerleğine Basma): Can be customized via Logi Options+ for various functions like opening new tabs or universal scroll.
- Yan Düğmeler: Default to Forward/Back navigation in web browsers. Customizable via Logi Options+.

Image: A hand demonstrating the comfortable grip of the M840 L mouse, designed for right-handed use.
2.2. Akıllı Tekerlek Kaydırma
The SmartWheel automatically switches between two scrolling modes:
- Satır Satır Kaydırma: Ideal for precise navigation through documents and lists.
- Çok Hızlı Kaydırma: Automatically engages when you scroll faster, allowing you to fly through long web sayfalar ve belgeler.
The M840 L also features quiet clicks and scrolling, minimizing distractions in shared workspaces.

Image: A user engaging the SmartWheel for efficient scrolling, maintaining focus during work.
2.3. Customizing Buttons with Logi Options+
Utilize the Logi Options+ software to personalize your mouse experience:
- Düğme Atamaları: Reassign functions to any of the 6 buttons, including application-specific actions.
- DPI Ayarı: Fine-tune the mouse's tracking speed (DPI) to match your preference.
- Jestler: Assign gesture controls to certain buttons for enhanced navigation.
- Akış: If you have multiple computers with Logi Options+ installed, use Flow to seamlessly move your cursor, text, and filearalarında s.

Image: A user interacting with the Logi Options+ app to customize the buttons of their M840 L mouse for improved workflow.
3. Bakım
Doğru bakım, farenizin uzun ömürlü olmasını ve en iyi performansı göstermesini sağlar.
3.1. Pil Değişimi
The M840 L mouse has an estimated battery life of up to 24 months. When the battery is low, the LED indicator on the mouse may flash red. To replace the battery:
- Alt kısımda bulunan güç düğmesini kullanarak fareyi kapatın.
- Farenin alt tarafındaki pil bölmesi kapağını açın.
- Eski AA pili çıkarın.
- Insert a new AA alkaline battery, ensuring correct polarity (+/-).
- Pil bölmesinin kapağını kapatın.
- Fareyi tekrar açın.
3.2. Temizlik
Farenizi temizlemek için yumuşak, tüy bırakmayan bir bez kullanın ve hafifçe silin.ampened with water or an electronics-safe cleaning solution. Avoid harsh chemicals, abrasive materials, or excessive moisture. Regularly clean the optical sensor on the bottom of the mouse to ensure accurate tracking.
4. Sorun Giderme
If you encounter issues with your M840 L mouse, refer to the following common solutions.
4.1. Fare Yanıt Vermiyor
- Gücü Kontrol Edin: Farenin açık olduğundan emin olun.
- Pil Seviyesi: Pil azaldığında veya tamamen bittiğinde AA pilini değiştirin.
- Bluetooth'u yeniden eşleştir: Go to your device's Bluetooth settings, remove the M840 L, and then re-pair it following the steps in Section 1.2.
- Başka Bir Cihaz Deneyin: Test the mouse with another Bluetooth-enabled device to determine if the issue is with the mouse or the original device.
4.2. Kesintili Bağlantı veya Gecikme
- Girişimi Azaltın: Move the mouse closer to your device. Avoid using the mouse near other wireless devices (Wi-Fi routers, cordless phones) that might cause interference.
- Sürücüleri Güncelle: Ensure your computer's Bluetooth drivers are up to date.
- Sensörü Temizleyin: Farenin alt kısmındaki optik sensörü temizleyin.
4.3. Buttons Not Functioning as Expected
- Check Logi Options+: Open the Logi Options+ software to verify button assignments. Ensure no conflicting profile'ler aktif.
- Yazılım Yeniden Yükleme: If issues persist, try uninstalling and reinstalling Logi Options+.
5. Özellikler
| Marka | Logitech |
| Model Adı | M840L |
| Model Numarası | 910-007712 |
| Renk | Grafit |
| Bağlantı Teknolojisi | Bluetooth |
| Hareket Algılama Teknolojisi | Optik |
| Düğme Sayısı | 6 |
| El Yönelimi | Sağ |
| Uyumlu İşletim Sistemleri | Windows, macOS, Chrome OS, Linux, iPadOS, Android |
| Pil Türü | 1 adet AA alkalin pil (dahil) |
| Pilin Ortalama Ömrü | 24 aya kadar |
| Ürün Ağırlığı | 107.9 gr |
| Ürün Boyutları (U x G) | 4.8"U x 2.93"G |
| Muhafaza Malzemesi | Plastic (minimum 50% post-consumer recycled plastic) |
6. Garanti ve Destek
6.1. Garanti Bilgileri
The Logitech Signature Comfort M840 L Wireless Mouse comes with a 2 Yıllık Sınırlı Donanım Garantisi. This warranty covers defects in materials and workmanship under normal use. For full terms and conditions, please refer to the documentation included with your product or visit the official Logitech webalan.
6.2. Müşteri Desteği
For further assistance, technical support, or to download the latest version of Logi Options+ software, please visit the official Logitech support webalan:
- Logitech Desteği: https://support.logi.com
- Logi Options+ Download: https://www.logitech.com/optionsplus