How to connect the printer to the phone Xiaomi through USB-cable: full instruction

Connecting the printer to the Xiaomi smartphone through USB-cable seems like a simple task, but in practice, users face a lot of nuances, from the lack of drivers to device recognition errors. USB-Connectivity allows for stable data transfer without delay, which is critical for printing documents in the office or at home. However, not all printers support this mode of operation, and Android systems (including the use of the Internet) MIUI) Often require additional settings.

In this article, we will analyze the step-by-step connection algorithm, taking into account the features of Xiaomi firmware, consider the compatibility of popular printer models (from Canon to Canon). HP), and solve typical problems - from lack of response of the device to error USB-I don't recognize the device. I'll focus on the setting. OTG-Selecting the right cable, as these are key points for successful connection.

What printers support connecting to Xiaomi via USB

Not every printer can be connected directly to a smartphone, but the main requirement is that it supports USB OTG (On-The-Go) technology, which allows the phone to act as a host. Most modern models from Canon, Epson, HP and Brother are compatible, but there are important nuances:

• 🖨️ Inkjet printers: Most models (e.g. Canon) PIXMA MG3640 or Epson EcoTank L3150) support OTG, but require the installation of proprietary applications.
• 🖨️ Laser Printers: Models with USB Type-B (e.g, HP LaserJet Pro M404n) They are usually compatible, but may not work without additional drivers.
• 🚫 Older models: Printers are older 2015 year (e.g. Canon) MP250) Often not recognized due to lack of support MTP/PTP-protocol.
• ⚠️ MFPs (Multifunctional Devices): Support OTG It depends on the manufacturer. DCP-T520W It works, and Samsung does. SCX-3405W — no.

Before you buy a cable or try to connect, check the specifications of your model on the official website. If the printer does not support OTG, the alternative is to use Wi-Fi Direct or cloud services (for example, Google Cloud Print, although it has been closed since 2020).

Necessary tools and accessories

Successful connection will not only be required USB-And the mistake many users make is using the wrong cable or not having the right accessories. OTG-adapter. That's what you need to prepare:

• 🔌 USB OTG-cable: Required for all Xiaomi smartphones (except flagships with the USB-C, where a standard cable can suffice: UGREEN USB OTG Or the original adapter from Xiaomi.
• 🖇️ USB-Printer cable: Usually comes with a complete set (USB Type-A → If lost, any high-quality cable with data support (not just charging) will do!).
• 📱 Smartphone with support OTG: All Xiaomi models since Redmi Note 4 (2017) support OTG. You can check in the settings: Settings → Connected devices → USB.
• 📲 Printer software: Apps like Canon PRINT, Epson iPrint or HP Smart is often required for proper operation.

Critical moment: cheap OTG-The cables may not be transmitting data, but only charging the device. Check the cable on another device (such as a flash drive) before connecting the printer.

⚠️ Note: If your smartphone does not recognize OTG-Check the developer's settings, sometimes you need to turn on the debugging option. USB (Path: Settings → The phone. → Version. MIUI — Tap 7 times, then return to the Additional Settings → For developers).

Step-by-step instructions for connecting a printer to Xiaomi

Now, let's get to the practice. Follow the instructions in strict order to avoid mistakes:

1. Step 1. Check compatibility: Make sure the printer is on and connected to the network (if required) and check if it supports OTG (the information is available in the user manual or on the manufacturer’s website).
2. Step 2. Connection OTG-cables connect OTG-Adapter with phone and connect to adapter USB-The printer cable, the smartphone screen should have a notification USB-plug-in.
3. Step 3. Select Connection Mode In the drop-down menu (after connecting) select File Transfer (MTP) or PTP. Some printers require a mode USB-accumulator.
4. Step 4: Install drivers If the phone requests driver installation, confirm the action. Some models (e.g. HP) will require you to download the software from Google Play.
5. Step 5: Print the test document Open the file (PDF, photo or document) and select Print. Your device should appear in the printer list.

The printer is on and ready to go.|

Used by the original OTG-cable|

OTG mode is enabled on the phone (if there is a separate setting)|

Printer software installed (if necessary) |

Compatibility of the printer model with Android-->

If the printer doesn't show up in the printer list, reboot both devices and reconnect. Sometimes changing the device helps. USB-Port on the printer (if there are several of them).

Solving common problems

Even with the right connection, errors can occur, and let's look at typical scenarios and how to fix them:

• 🔴 Mistake "USB-Device not recognized" Causes: faulty cable, lack of drivers or Conflict with other connected devices. Solution: Try another one OTG-Cable. Turn off all the others. USB-Update the printer firmware (the instructions are usually on the manufacturer's website).
• 🔴 The printer is connected but the printing doesn't start Possible reasons: the right printing software is not selected or the printer is offline. Solution: Install the official brand application (e.g. Epson Print Enabler). Check the ink/toner level. Reboot the printer (turn off for 30 seconds).
• 🔴 The phone is not responding to the connection OTG The problem may be the settings. MIUI. Solution: Check if it's on. OTG In Settings → Connections and sharing → USB. Update your phone's firmware to the latest version. Reset your network settings: Settings → System system → Resetting settings → Resetting Wi-Fi, Mobile Network and Bluetooth.

⚠️ Note: Some Xiaomi models (e.g. Redmi) 7A) plug-in OTG-It's normal to do this, because the phone gives priority to data transmission. If the battery is less than 20 percent dead, plug it in before printing.

Alternative Printing Methods with Xiaomi

If USB connectivity fails, consider alternatives, which are less versatile but often save you in critical situations:

• 📶 Wi-Fi Direct: Most modern printers support direct Wi-Fi connection without a router. Turn on the printer mode, then connect to its network from your smartphone (password is usually indicated on the sticker).
• ☁️ Cloud Printing: Services like Google Cloud Print (closed but similar) or Mopria Print Service allow you to print over the Internet.
• 📎 PC Printing: If the printer is connected to a computer, you can send the file to print remotely via TeamViewer or AnyDesk.
• 📱 Bluetooth printing: Rare, but some models (e.g, HP OfficeJet 200) Bluetooth support. Speed is low, but it's good for small documents.

For enterprise users, a network printer connected to a router is the best option, in which case printing is available from any device on the local network, including Xiaomi smartphones, and it takes 5-10 minutes to set up and is described in the printer manual.

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If the printer supports NFC, try tapping the area with the NFC logo on the printer. Some models (such as the Brother HL-L2350DW) automatically establish a print connection.

Tips for optimizing printing from the phone

Even after a successful connection, printing from a phone can be a inconvenience, such as slow data transfer, poor image quality or formatting errors.

• 📄 File format: Use documents for the PDF — It saves formatting. It's better to convert images into JPEG with a resolution of no more than 300 dpi (otherwise the file will be too heavy).
• ⚡ Ink Savings: In your print settings, choose the Draft Mode or Saving Toner Mode, which will speed up the process and reduce costs.
• 🔄 Bilateral printing: If the printer supports duplex, enable this option in the print app.
• 📱 Preview: Always check how the document will look on paper. Apps like Adobe Acrobat or Google Docs have a preview feature.

For regular printing, we recommend creating document templates in Google Docs or Microsoft Word (mobile versions), which eliminates the need to adjust settings every time, and it is also useful to configure quick commands in the printer application - for example, the "Print Photos 10×15" button for instant launch.

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Use proprietary printer applications (Canon PRINT, Epson iPrint, etc.) – they are optimized for mobile printing and often offer additional features (for example, scanning on the phone).

Security when connecting a printer to a phone

Connecting external devices to your smartphone always carries risks, from data leakage to malware infection.

• 🔒 Use official accessories: Cheap OTG-Cables may contain malicious chips. Buy adapters from proven brands (UGREEN, Anker, Xiaomi).
• 🛡️ Update your firmware: Check printer and phone updates regularly. Vulnerabilities in older versions of software can be used to attack.
• 📵 Turn it off. OTG After use: Long-term external connection increases the risk of overheating or phone malfunctions.
• 🔍 Check Application Permissions: When installing printer software, deny access to contacts, messages, or geolocation unless required for printing.