Modern Samsung smartphones have long ceased to be just devices for calls and correspondence, but have turned into powerful work tools capable of performing tasks previously only available to personal computers. One of these features is the ability to directly print documents and photos without the need for an intermediate laptop or PC. However, despite the popularity of wireless technologies, many users still face the need for a reliable wired connection, especially when the Wi-Fi network is unavailable or unstable.
Connecting printer via USB cable to an Android-based device, in particular to Samsung smartphones, requires compliance with a certain algorithm of actions and the presence of specific equipment. Unlike automatic pairing over Wi-Fi, the wired method provides a more stable data transmission channel, which is critical when printing large volumes of text documentation or high-resolution photos. In this article, we will analyze in detail all the nuances of organizing such a connection, from choosing the right adapter to setting up drivers in specialized applications.
Necessary equipment and cable preparation
The first and most critical stage is to check the physical compatibility of your smartphone and the printing device. Standard USB cables that come with printers usually have a USB-A connector on one end and a USB-B (square) connector on the other. Samsung smartphones, depending on the model and year of manufacture, are equipped with Micro-USB or modern USB Type-Cports. Direct connection is not possible without a special adapter known as OTG (On-The-Go).
You will need to purchase a high-quality adapter USB OTGthat will allow the phone to operate in host mode. For modern flagships and mid-budget Samsung models, this will be an adapter from Type-C to USB-A. It's important to make sure that your cable supports data transfer and not just charging, as cheap alternatives often have stripped-down pinouts. In addition, the printer itself must support work with external drives or have a direct connection mode, although in the case of Android the phone takes over the role of the host.
Pay attention to power consumption. Laser printers consume a significant amount of energy when the stove heats up, which can exceed the capabilities of the smartphone battery even with external power via OTG.
⚠️ Attention: Using low-quality cheap OTG adapters can lead to voltage surges and damage to the power controller of your Samsung smartphone. It is recommended to use original accessories or certified third-party brands.
If you have an inkjet printer, the situation is simpler, since its power consumption in standby and printing mode is much lower. However, always keep a phone charger handy as the printing process, especially color images, can quickly drain your battery. Make sure that there is no oxidation or physical damage to the contacts at both ends of the circuit - both the printer cable and the adapter.
Before purchasing an OTG adapter, check the specifications of your Samsung model on the official website: some budget series of the previous generation may not support the USB Host function at the firmware level.
Activating debugging mode and USB settings
After the physical connection is prepared, you need to make sure that the software part of the smartphone is ready to work with peripherals. In most cases, Samsung's modern One UI will automatically recognize the connected device, but to ensure results, it's worth checking a few system parameters. Go to Settings → Connections → Other settings and find the item responsible for connecting USB devices.
Sometimes the system may ask for permission to access the data of the connected device. In the dialog box that appears, you must confirm the action by clicking OK or Allow. If the automatic notification does not appear, you may need to activate Developer Mode, although this is rarely required for basic printing. To do this, go to Settings → Phone information → Software information and quickly press 7 times on the item Build number.
After activating the developer menu (it will appear in the main settings), check the section Developer options. Make sure that the option USB debugging is turned off unless you plan to use advanced debugging tools, as activating it may conflict with regular print drivers. Also check the setting Default USB configuration —it should be set to file transfer mode or working with peripherals, not just charging.
- 📱 Make sure the screen is unlocked when connecting the cable, as some Samsung models block data ports in sleep mode.
- 🔌 Use the original Data Cable that came with the printer, avoiding long extension cords that can weaken the signal.
- ⚡ Make sure your smartphone battery has at least 20% to avoid sudden shutdown during printing.
If the phone makes a characteristic device connection sound when connecting to the printer, it means that physical contact has been established successfully. Lack of response may indicate a faulty OTG adapter or file system incompatibility if the printer is perceived as a drive. In rare cases, it is necessary to reboot the device after connecting the cable to correctly initialize the Android kernel drivers.
Selecting and installing a printing application
The Android operating system does not have built-in universal drivers for all existing printer models, unlike Windows or macOS. Therefore, the key to successful printing is the right software. For owners of Samsung equipment, the optimal starting solution is the application Samsung Print Service Plugin, which is often preinstalled or available in the Galaxy Store.
However, if the native solution does not see your device or does not support its functionality, you should turn to universal combines. The leader in this niche is the application NokoPrint, which supports thousands of printer models from HP, Canon, Epson, Brother and other manufacturers. It automatically detects a device connected via USB and loads the necessary drivers from its database.
An alternative option is to use proprietary utilities from printer manufacturers, such as HP Print Service Plugin or Canon Print Service. These apps often provide access to advanced settings, such as paper type selection, print quality, and duplex mode, that may not be available in all-in-one solutions. Installation is done through the Google Play Store, after which you need to grant the application the necessary permissions to access files and USB devices.
| Application | Support type | Advantages | Disadvantages |
|---|---|---|---|
| Samsung Print Service | Native / Basic | Integration with One UI, battery saving | Limited driver base |
| NokoPrint | Universal | Support for 95% of printers, work without the Internet | Presence of advertising in free version |
| HP Print Service | Branded | Full access to HP settings, high quality | Works only with HP equipment |
| PrinterShare | Universal | Powerful diagnostic tools, paid full version | Complicated interface for beginners |
After installing the application, launch it and wait for the ports to scan automatically. Your printer should appear in the list of available devices with the mark USB. If the device is found, the system will prompt you to download the driver - agree to this action. The download process may take from a few seconds to a minute depending on the Internet speed and the size of the driver package.
Setup process and first print
When the driver is installed and the printer appears in the list as an active device, you can proceed to test printing. Open any document, photo, or web page you want to print. Click on the menu button (three dots) and select Print. In the window that opens, the system will prompt you to select a printing service - make sure that the application you have installed is selected (for example, NokoPrint or Samsung Print).
In the print settings interface, you can select a specific printer model from the drop-down list if the automatic detection did not work perfectly. Settings for paper size (A4, Letter, Photo 4x6), orientation (portrait or landscape) and number of copies are also available here. For color printing, make sure that the mode is selected in the settings Color, and not Grayscale, if you do not plan to save ink.
Press the button Printing or printer icon. The phone will send the data via USB cable to the device. At this point, the printer should begin to make noise, grab paper and reproduce the printing process. If a progress bar appears on the smartphone screen, this is a good sign - the data is being transferred correctly. Do not disconnect the cable until the process is completely completed, even if it seems that printing is already in progress.
☑️ Checklist before the first print
If printing has not started, check the print queue in the application. Sometimes jobs get stuck because the file format or the image resolution is incompatible with the printer's capabilities. Try reducing the file size or converting the document to PDF before sending. Also make sure that there are no errors on the printer, such as out of paper or a jam, that could block new jobs from being accepted.
Solving common connection problems
Despite its apparent simplicity, users often encounter a situation where the phone sees the cable, but does not recognize the printer. One of the most common causes is malnutrition. If you are using a powerful laser printer, try connecting the OTG adapter via a USB hub with external power so that the smartphone does not try to power the printing device from its battery.
Another common problem is a driver conflict. If you've previously used a Wi-Fi printing app, it may be taking over control of your device. Try temporarily disabling Wi-Fi on your smartphone to_force_ the system to use only the USB channel. Also clear the cache of the printing application in the Android settings: Settings → Applications → [Your application] → Storage → Clear cache.
⚠️ Attention: The settings interfaces and menu item names may differ depending on the version of One UI and the model of your Samsung. If you do not find the described item, use the search inside the settings menu using the keywords "USB" or "Print".
In cases where the printer is detected, but prints "crazy" or blank sheets, the problem lies in the incorrectly selected driver within the application. Try manually selecting another model from the list that is similar in characteristics to yours, or update the driver database in the application. For older printer models, you may need to use compatibility mode or PCL/PostScript emulation.
What to do if the phone does not see the printer at all?
Try connecting a flash drive to the same OTG adapter. If the flash drive is readable, then the port and adapter are working properly, and the problem is with the printer compatibility or the data cable. If the flash drive is also not visible, replace the OTG adapter.
Features of printing photos and documents
Printing photos via USB has its own nuances related to the color profile and resolution. Mobile apps often compress images by default to speed up transfer, which can reduce print quality. In the settings of advanced applications, such as NokoPrint, you can find an option High Quality Print or disable compression, which will increase the file preparation time, but will provide maximum detail.
When working with documents, especially in Word or Excel formats, it is important to monitor page margins. Mobile versions of office suites may display a document differently than it would on paper. It is recommended to always use a preview before submitting an assignment. If the document contains complex tables or graphs, the best solution would be to first save the file in a format PDFthat fixes the layout.
For users who require regular large-volume printing, it is worth considering using a USB hub. This will allow you to connect a printer and a flash drive at the same time, printing files directly from a memory card without loading them into the internal memory of the phone, saving space and time.
Direct USB connection provides maximum data transfer speed and stability, which makes it indispensable for printing confidential documents in offices without a Wi-Fi network.
Frequently asked questions (FAQ)
Is it possible to connect a printer to Samsung without root access?
Yes, absolutely. To connect the printer via USB and print documents, you do not need to obtain root access or unlock the bootloader. All the necessary functions are available in the standard One UI firmware when using third-party driver applications.
Does my old Samsung Galaxy support the OTG function?
Almost all Samsung smartphones released after 2013 support USB OTG technology. However, to be sure, you can download the free application "USB OTG Checker" from the Play Market, which will tell you exactly whether your specific device supports host mode.
Why does the printer print very slowly through the phone?
Printing speed depends on the power of the smartphone processor, which processes the raster image, and the bandwidth of the USB cable. Complex photos take time to render. Try lowering the print quality to "Draft" to speed up the process.
Is it possible to scan documents via a USB connection?
Yes, many MFPs (printer + scanner) support the scanning function via USB when connected to Android. This will require specialized applications, such as Smart Office Scan or proprietary utilities from the MFP manufacturer that support TWAIN drivers via USB.
Is it safe to leave the phone connected to the printer for a long time?
Yes, it is safe. However, it is worth remembering that some printers can supply voltage to the USB bus even when turned off, which can slowly drain the phone. It is recommended to disconnect the cable after completing tasks.