FAQ-ネルコ

No. Please do not pair the printer from your phone's system Bluetooth settings. Open the NELKO app and connect the printer from inside the app instead.

First update the NELKO app to the latest version, then restart the app, printer, and phone. If the issue continues, try connecting with another phone. If only one phone has the issue, note the phone model, OS version, app version, and printer firmware version, then send these details to our support team.

The app needs photo access so you can select images from your phone and send them to the printer. If you denied photo permission, open your phone settings, allow photo access for the NELKO app, then reopen the app and try again.

Firmware updates help keep the printer compatible with the latest version of the app. If the firmware is too old, the app may not connect to the printer or print normally.

Connect the printer in the app, open the device details page, and check the firmware version. To check the app version, go to the app's profile or account area and look near the bottom of the page. For known incomplete-printing issues, use PP01 firmware 1.3.8939 or later, PP03 firmware 1.3.8940 or later, and update the app to Android 4.7.2+ or iOS 4.9.3+.

Check whether the photo paper is jammed, folded, or loaded with more than 10 sheets. Make sure the cartridge is installed correctly. Then close the app, turn off the printer, wait about three minutes, restart both the app and printer, and print again.

Restart the app and printer, then try printing again. If the issue happens repeatedly, update the app and firmware. If the app freezes during an incomplete print, do not close the app before submitting feedback, because closing it may erase useful error logs.

Check whether the photo paper is jammed, folded, or loaded with more than 10 sheets. Make sure the cartridge is installed correctly. Then close the app, turn off the printer, wait about three minutes, restart both the app and printer, and print again.

Restart the app and printer, then try printing again. If the issue happens repeatedly, update the app and firmware. If the app freezes during an incomplete print, do not close the app before submitting feedback, because closing it may erase useful error logs.

First check the printer firmware and app version. For PP01, use firmware 1.3.8939 or later; for PP03, use firmware 1.3.8940 or later. Also update the app to Android 4.7.2 or later or iOS 4.9.3 or later. If the issue continues on the latest versions, keep the app open, submit feedback in the app, and send your account ID to our support team.

The photo paper was likely loaded upside down. Load the photo paper with the printable side facing down, then try printing again.

The paper may be loaded in the wrong direction. Reload the photo paper with the printable side facing down. Also avoid touching the printed surface immediately after printing.

Load no more than 10 sheets at a time. Overloading the paper tray may cause paper jams, feeding errors, or failed prints.

To reduce print interruptions, the printer may show a low-paper or no-paper alert when the remaining paper is too low. For smoother printing, keep 2 to 10 sheets in the paper tray and make sure the paper is flat and properly aligned.

Use NELKO photo paper made for the PP Series, store the paper in a cool and dry place, and do not use damp, curled, wrinkled, or damaged paper. Before loading, gently fan the sheets to reduce static, stack them neatly, and do not exceed the 10-sheet capacity.

Open the printer cover and locate the jammed paper. Hold both sides of the paper and pull slowly and evenly along the paper path. Do not tear the paper or leave scraps inside the printer. After removing the main jam, check for small paper pieces before reloading paper.

Usually no. After clearing a paper jam, resend the print job from the app. If the printer still shows an error, restart the printer, reload the paper and cartridge, then try again.

Make sure all covers are fully closed, restart the printer, and let it run its self-check. If the error remains, remove the cartridge and all photo paper, turn off the printer for one minute, reload the cartridge and paper, then power it on again.

Use a high-resolution source image, print within the recommended temperature and humidity range, and make sure the printer is fully charged. If the cartridge has been exposed to air for a long time, gently wipe the nozzle plate in one direction with a lint-free cloth or wet wipe, then let it dry before printing.

Check whether the cartridge has enough ink. If the cartridge may have dried out, gently wipe the nozzle plate in one direction with a lint-free cloth or wet wipe. To help prevent drying, print at least once a week, ideally every 3 to 5 days.

First check the original image and make sure no strong filter or color adjustment is applied in the app. Then run the printhead cleaning function in the app. If the issue continues, check that the cartridge is installed correctly, gently clean the nozzle plate, update the firmware, and print again.

Phone screens and printed photos use different color display methods, so a printed photo may not look exactly the same as the image on your screen. For best results, use a high-resolution image, avoid heavy filters, and print within the recommended temperature and humidity range.

Run the printhead cleaning function in the app. If lines remain, gently wipe the printhead nozzle with a clean lint-free cloth dampened with water, always wiping in one direction and avoiding the electronic contacts. Let the printhead dry completely before printing again.

Close the app, turn off the printer, wait about three minutes, then restart both the app and printer and print again. If the problem continues, contact our support team for further assistance.

The PP Series uses 2 x 3 inch photo paper, but the actual printable area is smaller than the full sheet. A bottom tear-off area or blank margin is normal. Please check the model's print area before ordering if full-sheet printing is required.

Use 52 x 90 mm photo paper with a 45 x 60 mm print area.

Make sure the USB cable and power adapter are connected properly. Charge the printer within the recommended temperature range and avoid using a damaged cable or adapter. If the printer still will not charge, contact our support team.

PP01, PP03, and NELKO FLOW can print at least 55 photos on a full charge under standard test conditions. Actual battery life varies with image coverage, temperature, connection status, and battery age.

Each PP Series printer includes one ink cartridge. One cartridge can print at least 60 photos under standard test conditions. Actual yield varies with image coverage and usage conditions.

Turn on the printer before installing the cartridge. Push down the cartridge cover so the cartridge holder moves to the center. If the holder does not move, close the cartridge cover and open it again, then install the cartridge firmly.

Make sure all protective tape, stickers, or plastic covers have been removed from the cartridge. Reinstall the cartridge firmly until it clicks into place, then turn the printer off for 1 to 2 minutes and power it on again. If needed, gently clean the cartridge and printer contacts with a lint-free cloth.

The cartridge chip, cartridge contacts, printer contact springs, or internal sensor may be causing the issue. If cleaning and reinstalling do not solve it, contact our support team with your order information, printer model, cartridge photos, and a short video of the error.

A small amount of ink may leak during air shipping because of pressure changes and vibration. Open the transparent bag carefully, wipe the outside of the cartridge and metal contacts with a tissue or soft cloth, let it dry, then install it. If the first print has mixed colors or streaks, run the printhead cleaning function in the app.

For best print quality and smoother feeding, use NELKO photo paper and cartridges designed for your PP Series printer. Non-matching consumables may cause feeding errors, poor print quality, or recognition issues.

PP01 photo paper has adhesive backing. PP03 photo paper is non-adhesive, but PP01 and PP03 photo paper can both be used with the supported printers. Check the product page before ordering if adhesive backing is required.

Replacement PP Series photo paper and cartridges are available from our online store and official sales channels. Make sure the consumable matches your printer model before ordering.

Keep photo paper in its original packaging and store it in a cool, dry place away from moisture, dust, and direct sunlight. Keep cartridges sealed until use. If a cartridge has been exposed to air for a long time, the ink may dry and affect print quality.

Yes. NELKO photo paper is airport-friendly and does not require special handling like traditional instant film. Pack your photo paper normally for travel.

Yes. You can preview and edit photos in the app before printing. This helps you adjust the image first and reduce wasted prints from unsatisfactory results.

For the most reliable printing, use JPG images. If your photo is in another format, convert or save it as JPG before printing if the app cannot process it normally.

Contact our support team with your order number, printer model, photos of everything included in the package, and the missing item. Once we verify the order, we will help arrange a replacement for the missing accessory or consumable.

Contact our support team with your order number and shipping details. We will check the shipment status and help you with the next step.

The P21 works with iOS and Android mobile devices through the NELKO app. Before connecting, make sure Bluetooth is enabled and the app has the required permissions.

The NELKO P21 is made for mobile printing through the NELKO app on iOS and Android devices. For computer printing or bulk shipping-label tasks, we recommend choosing a NELKO model designed for desktop or shipping-label use. Such as PL70E

No. The USB-C cable is used for charging the P21. To print labels, please connect the printer to the NELKO app through Bluetooth.

Use the NELKO app to connect the printer, create labels, choose templates, edit text, and send labels to print. Download the app from the Apple App Store or Google Play.

No. Do not connect the printer from your phone's system Bluetooth settings first. Turn on Bluetooth, open the NELKO app, and connect the P21 from inside the app.

Make sure the printer is powered on, Bluetooth is enabled, and your phone is close to the printer. Open the NELKO app and search for the printer inside the app. If it still does not appear, restart the printer, app, and phone, then try again.

Restart the printer and the NELKO app, then reconnect inside the app. If the printer was connected to another phone, disconnect it there first. If the issue continues, remove old Bluetooth records, update the app, and try again near the printer.

The P21 is designed to connect with one mobile device at a time. To use another phone, disconnect the printer from the current phone first, then connect it through the NELKO app on the second phone.

The app needs Bluetooth permission to find and connect to the printer. On some Android phones, location permission may also be required for Bluetooth device discovery. Allow the requested permissions, then reopen the app and connect again.

The NELKO app may request photo or camera permission when you use image, icon, QR code, barcode, or camera-related label features. You can allow the permission in your phone settings to use these functions normally.

Yes. You can create labels in the NELKO app and reuse templates or saved designs for repeated labeling tasks. This is useful for storage labels, office labels, price tags, and daily organization.

The P21 works with NELKO label rolls made for the P21 series. Please choose P21-compatible label paper from the official NELKO store or product page to make sure the size, feeding, and printing results match your printer.

For the best printing experience, we recommend using NELKO label rolls made for the P21. Non-NELKO labels may not fit correctly and may cause feeding errors, poor print quality, or adhesive issues.

The P21 is designed for compatible P21 label rolls. If you need long continuous labels, please choose a NELKO printer and label paper combination that supports continuous label printing.

Open the cover, place the compatible label roll inside, pull a short section of label paper out through the exit, then close the cover firmly. In the app, choose the correct label size before printing.

Open the cover and reload the label roll. Make sure the label paper is compatible with the P21, the roll is placed correctly, a short section comes out of the exit, and the cover is fully closed. Then select the correct label size in the app and try again.

This usually happens when the label roll is loaded incorrectly, the wrong label size is selected in the app, or dust affects the paper path. Reload the label roll, choose the correct label size in the NELKO app, and clean the paper path if needed.

Blank labels usually mean the label paper is loaded incorrectly, the wrong label type is being used, or the thermal side is not facing the print head. Reload the label roll, use compatible thermal labels, and try again.

Make sure the printer has enough battery and that you are using P21-compatible NELKO thermal labels. You can also check the print settings in the NELKO app. If the print is still unclear, gently clean the print head and try a new label roll.

Check whether the label roll is wrinkled, damp, stuck, or loaded unevenly. Clean the print head, reload the label roll, update the app if needed, and print again.

Choose the exact label size in the app and check the template margins before printing. If the label roll is not aligned straight, reload it and make sure the cover is closed properly.

Check the label size and template settings in the app. If the selected label size does not match the installed label roll, the design may print too small, too large, or in the wrong position.

The NELKO app supports barcode and QR code label creation. For better scanning results, keep the code large enough, avoid overly crowded designs, and test the printed code before using it on important items.

The P21 is a compact thermal label printer, so it is best for text, simple icons, QR codes, barcodes, and basic black-and-white graphics. For photo printing, please choose a NELKO photo printer instead.

The P21 prints at 203 dpi, which is suitable for small text labels, organization labels, simple icons, barcodes, and QR codes when the design is set up correctly in the NELKO app.

Preview the label in the NELKO app before printing. Check the selected label size, text position, font size, and margins first, then print only after the preview looks correct.

No. The P21 uses a manual cutter. After printing, use the printer's cutter to separate the label cleanly.

Make sure the label has fully exited the printer before cutting. Pull gently and use the cutter in one steady motion. If adhesive residue builds up near the exit, clean it carefully before printing again.

Charge the P21 with the included Type-C cable and a suitable 5V power adapter. For safe and stable charging, avoid using high-voltage fast-charging adapters.

P21 battery is 1200 mAh and the charging time is about 4 hours. Charging time may vary depending on the adapter and power source.

Charge the printer first, then press and hold the power button. If it still does not turn on, try another Type-C cable and a suitable 5V adapter. If the printer still has no response, contact support with your order number and a short video of the issue.

The printer may stop because of low battery, a paper error, an open cover, overheating, or a Bluetooth interruption. Charge the printer, reload the label roll, close the cover, and print again near your phone.

Turn off the printer, open the cover, and gently remove the stuck label. Do not pull hard while the printer is closed. Check for torn label pieces or adhesive residue, reload the roll, and try printing again.

Turn off the P21 and open the cover. Gently clean the print head with a lint-free cloth or cotton swab lightly moistened with alcohol. Let it dry completely before loading labels and printing again.

Stop printing and check whether the label roll is loaded correctly. Remove any stuck label pieces or debris, then reload the roll. If the noise continues, stop using the printer and contact support.

P21 compatible NELKO labels are designed for daily use and can help resist water, oil, and scratches depending on the label material. Actual durability may vary by surface and usage environment, so we recommend testing one label first for important applications.

Apply labels to a clean, dry, smooth surface. Dust, oil, moisture, curved surfaces, and textured materials can reduce adhesion. Press the label firmly after applying it.

Many P21-compatible NELKO labels are designed to peel off cleanly, but removability may vary by label type, surface material, and how long the label has been applied. For delicate surfaces, test one label first.

No. The P21 is for small labels and organization labels. It is not suitable for standard 4×6 shipping labels. For shipping labels, use a dedicated shipping label printer such as a NELKO PL70E.

Yes, you can label kitchen jars or containers on the outside surface. Do not apply labels directly to food, and test adhesion first if the container will be washed, chilled, or exposed to moisture.

Please provide your order number, printer model, phone model, phone system version, NELKO app version, label roll type or size, and a short video showing the issue. This helps our support team check the problem faster.

Yes. The PL70E is built for online sellers, small businesses, warehouses, and daily shipping workflows. It can print 4 × 6 shipping labels and other supported thermal label sizes.

Yes. You can use the PL70E at home for shipping labels, return labels, storage labels, barcode labels, and other supported thermal label formats.

Power on the printer, connect it to your Windows computer with the USB cable, download the PL70E Windows driver from the NELKO support page, install the driver, select USB during setup, then print a test page.

Power on the printer, connect it to your Mac with the USB cable, download the PL70E Mac driver from the NELKO support page, install the driver, then select the PL70E when printing your label PDF.

You can download the PL70E Windows, Mac, and Linux drivers from the NELKO support page. Please choose the driver that matches your computer system.

Yes. For computer printing, please install the PL70E driver first. After installation, select the PL70E as your printer before printing your label file.

Yes. After installing the driver, print a test page from your computer to confirm that the PL70E is installed correctly.

Make sure the printer is powered on, the USB cable is connected securely, and the correct PL70E driver is installed. Restart the computer and printer, then check the printer list again.

Yes. After installation, you can rename the PL70E in your computer printer settings if you manage multiple printers. This will not change the printer model or driver.

Yes. You can print from your phone by using the Shipping Printer Pro app and connecting to the PL70E through Bluetooth.

For PL70E mobile printing, please use the Shipping Printer Pro app. Download it from the App Store or Google Play, then connect the printer inside the app.

Keep your phone close to the printer, turn on Bluetooth, allow Bluetooth and location permissions for the app, restart the app and printer, then connect from inside the Shipping Printer Pro app.

Please connect the PL70E inside the Shipping Printer Pro app. If the app cannot find the printer, restart Bluetooth, the app, and the printer, then try again inside the app.

For a stable Bluetooth connection, keep your phone and the PL70E close to each other. If the connection drops, move the phone closer and remove obvious obstacles between the phone and printer.

The PL70E can support Bluetooth setup on Windows, but USB is recommended for faster and more stable computer printing. For Windows Bluetooth setup, install the driver and follow the NELKO setup guide instead of manually pairing the printer first.

Bluetooth printing on Windows may respond more slowly than USB printing. For faster and more stable printing, connect the PL70E by USB and select the USB printer option after installing the driver.

For computer printing, USB is the recommended connection method. Bluetooth is useful for mobile printing, while USB usually gives a faster and more stable desktop printing experience.

The PL70E is designed to print from one connected device at a time. If you want to use another phone or computer, stop the current print task and connect from the device you want to use.

The PL70E works with many major shipping and eCommerce platforms, including Amazon, eBay, Shopify, USPS, UPS, Etsy, and PayPal, as long as the platform can generate a supported label file.

Yes. Download your Shopify shipping label as a 4 × 6 label file when available, then print it with the PL70E from your computer or through the mobile app.

Yes. Use the label format provided by Amazon that matches your shipping workflow, preferably a 4 × 6 thermal label format, then print it with the PL70E.

Yes. Set your eBay shipping label format to 4 × 6 when possible, download the label, and print it with the PL70E.

Yes. Choose a compatible shipping label format in Etsy, download the label file, and print it with the PL70E.

Yes. The PL70E can print carrier labels when the label file is formatted for supported thermal label sizes, such as 4 × 6 shipping labels.

Yes. Download the PayPal shipping label in a supported format, then print it with the PL70E. For best results, use a 4 × 6 thermal label layout when available.

Yes. The PL70E can print PDF shipping labels after the printer driver is installed or through the supported mobile printing workflow. Make sure the PDF page size matches the label size you are using.

The PL70E supports thermal labels with widths from 1.54″ to 4.1″ (40–104 mm). Common use cases include 4 × 6 shipping labels and other supported thermal label sizes within that width range.

Yes. The PL70E is designed for 4 × 6 shipping labels and can also support other compatible thermal label sizes within its supported width range.

Yes, as long as the label width is within the supported range and the correct label size is selected in your print settings or app settings.

Yes. The PL70E can work with compatible thermal labels such as fanfold labels when they are loaded correctly and the label size matches your print settings.

Yes. The PL70E can work with compatible thermal roll labels when they fit the supported width range and feed smoothly through the printer.

No. You do not need special proprietary labels as long as the labels are direct thermal labels and fit the PL70E supported width range. For the most stable results, choose high-quality labels that match your use case.

No. The PL70E is a direct thermal printer and prints in black on compatible thermal labels. It does not print in color.

This usually means the label file or print settings are not set to the correct label size. Choose a 4 × 6 label format from your shipping platform when available, then set the printer paper size to match your label.

An 8.5 × 11 label file is formatted for letter-size paper, not a 4 × 6 thermal label. Download or crop the label into a 4 × 6 format before printing with the PL70E.

Check the orientation in your print settings and make sure the page size matches the label size. If the label is rotated, switch between portrait and landscape or rotate the PDF before printing.

Make sure you are using direct thermal labels and that the printable side is facing the correct direction. Reload the labels, check the paper size setting, and print a test label again.

Increase the print density or darkness in your computer print settings or app settings. You can also try lowering the print speed, cleaning the print head, and using a fresh thermal label.

White lines are usually caused by dust, adhesive residue, or debris on the print head. Turn off the printer and gently clean the print head, then try printing again.

Make sure the label is printed clearly, the barcode is not too small, and the label file is not compressed or blurry. Increase print darkness if needed and reprint the label before attaching it to a package.

Check that the label size in your platform, PDF, driver, and printer settings all match the label you loaded. If the size is mismatched, the label may print cropped or incomplete.

Use a clear original label file and make sure the file is not a screenshot or low-resolution image. Set the correct label size before printing, then adjust density if needed.

We recommend printing the original label PDF instead of a screenshot. Screenshots can reduce barcode clarity and may make carrier scanning less reliable.

Calibrate the PL70E when you load a new label type, change label size, or notice skipped labels, extra blank labels, or misaligned printing.

Reload the labels, check that the label sensor path is clean, and run calibration. Also confirm that the paper size in your print settings matches the loaded label.

Extra blank labels usually happen when the paper size or label gap is not detected correctly. Set the correct paper size and run calibration after loading the labels.

This can happen when the label size is set incorrectly or the printer has not calibrated the current label type. Check the paper size and run calibration before printing a batch.

Turn off the printer, open the cover, remove the jammed label gently, then reload the labels flat and straight. Check that the label path is clean before printing again.

Load the labels so the printable thermal side faces the print head and the labels feed straight through the printer. After changing label type or size, run calibration before printing.

A steady red light usually means the printer is out of paper or the cover is open. Load labels correctly, close the cover, and try printing again.

Reload the labels, check the paper size, and run calibration. If the issue continues, reinstall the driver and make sure the correct PL70E printer is selected before printing.

The Shipping Printer Pro app needs Bluetooth permission to connect to the printer. On some phones, location permission is also required for Bluetooth device discovery. Allow the permissions, then reconnect inside the app.

Yes. Install the Shipping Printer Pro app on your iPhone, allow the required permissions, connect the PL70E in the app, and print your label file.

Yes. Install the Shipping Printer Pro app on your Android phone, allow the required permissions, connect the PL70E in the app, and print your label file.

Check that the label file can be opened in the app, the printer is selected, and the label size is correct. Restart the app and printer, then try printing a sample label.

Yes. You can use Bluetooth mobile printing through the app, or print from a computer after installing the PL70E driver. For computer printing, USB is recommended for stability.

Turn off the printer, open the cover, and gently clean the print head with a lint-free cloth or cotton swab lightly moistened with alcohol. Let it dry completely before printing again.

Clean the print head when labels look faded, show white lines, or after heavy use. Regular cleaning helps maintain clear barcode and shipping label output.

Use direct thermal labels that fit the PL70E supported width range. Choose the label size and adhesive type based on your package, storage, or product-labeling needs.

Only use labels made for direct thermal printing. If the label material is not thermal, the PL70E will not print on it correctly.

Thermal shipping labels are designed for clear, inkless printing without wet ink. Durability can vary by label material and shipping environment, so test one label first for important applications.

Please provide your order number, printer model, computer or phone model, system version, app or driver version, label size, and a short video or photo showing the issue. This helps our support team check the problem faster.

The PM230 can print black-and-white images, notes, and simple photo-style stickers, but it is not a color photo printer. For color photos, please choose a NELKO photo printer instead.

Please use the NELKO app to connect, edit, and print with the PM230. You can download it from the App Store or Google Play.

The PM230 works with compatible iOS and Android phones or tablets through the NELKO app. Please keep your phone system and NELKO app updated for the best experience.

No. The PM230 is designed for mobile printing through Bluetooth and the NELKO app. It does not support computer printing.

Turn on the PM230, enable Bluetooth on your phone, open the NELKO app, then add or select PM230 in the app. Please connect through the NELKO app rather than only through your phone’s Bluetooth settings.

Make sure the PM230 is turned on and close to your phone. Restart Bluetooth, reopen the NELKO app, and try again. If the printer was connected to another phone, disconnect it from that phone first.

The PM230 is designed to connect with one mobile device at a time. To use another phone, disconnect the printer from the current phone first, then connect it through the NELKO app on the second phone.

The NELKO app may request photo or camera permission when you use image, scan, camera, or album-related features. You can allow the permission in your phone settings to use these functions normally.

The PM230 works with NELKO sticker paper made for the PM230 series. Please choose PM230-compatible sticker paper from the official NELKO store or product page for better feeding and print results.

For the best printing experience, we recommend using NELKO sticker paper made for the PM230. Non-NELKO paper may cause feeding issues, poor print quality, or adhesive problems.

Yes. PM230 sticker paper can be cut into different shapes after printing, so you can use it for journaling, notes, study materials, labels, and DIY projects.

Yes. PM230 sticker paper is designed with a self-adhesive backing, so you can peel and stick your printouts without extra glue.

Check that the sticker paper is loaded in the correct direction and that the printable side faces the print head. Then close the cover, reconnect the printer in the NELKO app, and try printing again.

Make sure the PM230 has enough battery and that you are using compatible NELKO sticker paper. You can also clean the print head gently and try printing the design again.

The PM230 prints in black and white, so color images are converted into grayscale thermal prints. For clearer results, use images with strong contrast, simple lines, and less background detail.

Use high-contrast designs, avoid very tiny text, and keep enough space between icons, lines, QR codes, or barcodes. Preview the design in the NELKO app before printing.

Yes. You can create QR code and barcode-style labels in the NELKO app. For better scanning, keep the code large enough and test one printed sticker before using it on important items.

Make sure the sticker paper is installed correctly and pulled out slightly from the paper outlet before closing the cover. Then restart the printer and try again.

Reload the sticker roll and make sure it can move freely inside the printer. Remove any bent or wrinkled paper, close the cover securely, and try printing again.

Turn off the PM230, open the cover, and gently remove the jammed paper. Do not pull the paper forcefully. Reload the sticker roll correctly before printing again.

Charge the PM230 with the included charging cable and a suitable power adapter. For stable charging, avoid using high-voltage fast-charging adapters.

Turn off the PM230 and open the cover. Gently clean the print head with a lint-free cloth or cotton swab lightly moistened with alcohol. Let it dry completely before loading paper and printing again.

Yes. The PM230 is well suited for journals, planners, study notes, classroom materials, scrapbooks, storage labels, and simple black-and-white sticker projects.

Please provide your order number, printer model, phone model, phone system version, NELKO app version, sticker paper type, and a short video showing the issue. This helps our support team check the problem faster.

The PM220 supports compatible label widths from 23 mm to 54 mm. For best results, choose NELKO PM220-compatible labels and select the matching label size in the app or computer software before printing.

Yes. The PM220 is a compact rechargeable label printer, so you can use it at home, in the office, at markets, or in other small business workflows.

Yes. The PM220 can create barcode and QR code labels through the NELKO app. For better scanning, keep the code large enough, avoid overly crowded designs, and test one printed label before using it on important items.

Yes. In the NELKO app, you can edit text, icons, borders, tables, barcodes, QR codes, and templates to create custom labels for different uses.

The PM220 works with the NELKO app on supported iOS and Android devices. Download the app from the App Store, Google Play, or our Support page.

Yes. The PM220 supports computer printing with the PM220 driver and computer software. Please download the correct Windows or Mac driver from the NELKO support page before printing from a computer.

Turn on the PM220, open the NELKO app, add the printer inside the app, and select your PM220 from the device list. Please connect through the NELKO app instead of pairing directly from your phone's Bluetooth settings.

No. For mobile printing, open the NELKO app and connect the PM220 inside the app. Pairing only from the phone's Bluetooth settings may prevent the app from finding or using the printer correctly.

Make sure the PM220 is powered on, close to your phone, and not connected to another device. Turn on Bluetooth and location permission if your phone requires it, then restart the app and search again.

Check that the correct printer is selected in the NELKO app or computer software, the label roll is loaded correctly, the cover is closed, and the label size matches your current label roll. Then send the print job again.

Yes, but the PM220 should be connected to one device at a time. To use another phone, disconnect the current device first, then connect the printer through the NELKO app on the second phone.

The app may request permissions for Bluetooth search, image import, camera scanning, QR code creation, or other label design features. You can allow the required permission in your phone settings to use these functions normally.

You can download the PM220 Windows and Mac drivers from the official NELKO Driver & User Manual page. Choose the PM220 section and install the driver that matches your computer system.

Yes. For computer printing, connect the PM220 to your computer, install the correct PM220 driver, select the printer in your software, and print using the label size that matches your loaded labels.

Check that the PM220 is powered on, the USB cable is firmly connected, and the correct PM220 driver is installed. If the printer still does not appear, restart the printer and computer, then try another USB port.

Use NELKO labels made for the PM220 and choose the label size that matches your design. Compatible PM220 labels are available in different shapes, sizes, colors, and materials for different uses.

For the best printing experience, we recommend using NELKO PM220-compatible labels. Non-NELKO labels may not feed correctly and may cause poor print quality, wrong positioning, or adhesive issues.

Open the cover, place the label roll inside, pull a short section of label paper out of the printer, adjust the paper guides to fit the label width, then close the cover before printing.

Blank labels usually mean the label roll is loaded in the wrong direction. Reload the roll so the heat-sensitive printable side faces the correct direction, then try printing again.

This usually happens when the selected label size does not match the loaded label roll or the printer has not detected the label gap correctly. Reload the roll, select the correct label size, and feed one label before printing again.

Continuous feeding can happen when the label roll is not installed correctly, the label gap is not detected, or the app size setting does not match the label roll. Reload the labels, check the size setting, and feed one label to reset positioning.

Make sure the battery has enough power and that you are using PM220-compatible NELKO thermal labels. If the print is still light, clean the print head gently with alcohol and try a new label roll.

White lines or missing areas may be caused by dust, adhesive residue, or label debris on the print head. Turn off the printer, clean the print head gently, let it dry, and print again.

Check that the content is centered in the NELKO app or computer software and that the selected label size matches the loaded label roll. After changing label size, reload the roll and feed one label before printing again.

A shifted or cut-off print usually means the design size and the actual label size do not match. Select the correct label size, keep important content inside the safe area, and avoid placing text too close to the label edge.

Use a clear layout, keep the code large enough, avoid adding too many elements around it, and print a test label before using the code on products or packaging.

The PM220 is best for text, icons, simple black-and-white graphics, barcodes, QR codes, and label designs. For photo printing, choose a NELKO photo printer instead.

A red light usually points to a basic printer status issue, such as low battery, open cover, no paper, overheating, or a paper feed problem. Check the label roll, close the cover, charge the printer if needed, and let it cool before printing again.

Charge the PM220 for at least 30 minutes, then press and hold the power button again. If it still does not turn on, try another suitable charging cable and power source.

Charge the PM220 with the included charging cable and a suitable power adapter. For stable charging, make sure the cable is firmly connected and avoid using damaged charging accessories.

You can prepare your label design while the printer is charging. For the best printing result, make sure the printer has enough battery power before printing multiple labels.

Turn off the PM220 and open the cover. Gently clean the print head with a lint-free cloth or cotton swab lightly moistened with alcohol. Let it dry completely before loading labels and printing again.

Clean the PM220 when prints become light, show white lines, or after label adhesive or dust builds up near the print head. Regular cleaning helps keep labels clear and reduces printing errors.

Many NELKO PM220-compatible labels are designed for daily use and can help resist water, oil, and scratches depending on the label material. For important uses, test one label on the target surface first.

Removability depends on the label type, surface material, and how long the label has been applied. For delicate surfaces, test one label first before applying a full batch.

Make sure the surface is clean, dry, and free from dust or oil before applying the label. Choose a label material suitable for the surface and press the label firmly after application.

The PM220 is suitable for small labels, address labels, product labels, price tags, and barcode labels. It is not meant for standard 4 × 6 shipping labels; for that use, choose a NELKO shipping label printer.

Yes. The PM220 is suitable for clothing tags, price labels, product labels, market labels, and other small business labels when used with a compatible label size and material.

Please provide your order number, printer model, phone or computer model, system version, NELKO app or driver version, label size, and a short video showing the issue. This helps our support team check the problem faster.

The D810 is made for tattoo stencil printing. It may print simple black designs, but for regular documents, labels, or photos, please choose the NELKO printer type made for that use case.

The D810 is designed for A4 tattoo stencil paper. For best results, use compatible A4 thermal tattoo transfer paper and load it correctly before printing.

The D810 weighs less than 1.87 lbs, making it portable enough for studio use, travel, conventions, and mobile tattoo work.

Use the NELKO app to connect and print from your mobile device. Download it from the App Store, Google Play, or the Android APK link on our Support page.

The NELKO app requires iOS 13.0 or later or Android 7.0 or later. Please update your phone system if the app cannot be installed or opened normally.

Yes. The D810 supports Windows and Mac computer printing after the correct driver is installed. Please download the D810 driver from the NELKO support page before printing from a computer.

Restart the D810 and your computer, reconnect the printer, and make sure the correct D810 driver is selected in your printer list. If you use a USB cable, check that the cable is firmly connected.

Turn on the D810, open the NELKO app, and add the printer from inside the app. Please connect through the NELKO app instead of pairing only from your phone’s Bluetooth settings.

Make sure the D810 is turned on and close to your phone. Turn Bluetooth on, allow the NELKO app permissions, restart the app, and try adding the printer again from inside the NELKO app.

The D810 is designed to connect with one device at a time. To use another phone or computer, disconnect the current device first, then connect the D810 to the new device.

Yes. The D810 supports computer printing with the correct driver installed. If printing from a phone, please connect through the NELKO app.

Use compatible thermal tattoo stencil transfer paper made for thermal stencil printers. Regular copy paper, label paper, or photo paper will not produce proper stencil results.

No. Regular printer paper is not suitable for tattoo stencil printing. Please use compatible tattoo stencil transfer paper for clean stencil output.

Open the cover, place the tattoo stencil paper flat and aligned, then close the cover securely. Make sure the printable side is positioned correctly before sending the print job.

This usually means the tattoo transfer paper was loaded in the wrong direction. Reload the paper with the printable side positioned correctly, then print the design again.

For best results, use clear black-and-white artwork with strong lines and high contrast. Avoid low-resolution images, blurry screenshots, or designs with very fine details that may not transfer clearly.

Use a high-resolution black-and-white design, increase contrast before printing, and make sure the stencil paper is loaded correctly. If the print is still unclear, clean the print head and try again.

A light stencil may be caused by low contrast artwork, incompatible paper, low battery, or a dirty print head. Use compatible tattoo stencil paper, charge the printer, increase artwork contrast, and clean the print head if needed.