# Toner cartridge BLACKPOINT for Brother TN-421BK compatible, black

**URL:** https://aio.lv/en/product--blackpoint-blbtn421bkbw--11841639
**Data updated:** 2026-03-09 14:57 (EET)
**Category:** Laser Printer Toners
**Manufacturer:** BLACKPOINT
**Manufacturer code:** BLBTN421BKBW
**EAN:** 5907625639903
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 34.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blackpoint-blbtn421bkbw--11841639

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Compatible black toner cartridge by BLACKPOINT designed for Brother printers using the TN-421BK model. Provides black toner supply for monochrome printing tasks such as documents, invoices and reports. Intended as a replacement consumable matching form-factor and function of TN-421BK series to restore printing capacity in compatible Brother devices.

## Long description

BLACKPOINT compatible toner cartridge for Brother TN-421BK provides a direct replacement for black toner in monochrome Brother printers that accept the TN-421BK form factor. This cartridge supplies black toner for routine office and home printing tasks such as documents, invoices and reports, restoring printing capacity with a compatible physical design and expected print performance.
Advantages
This BLACKPOINT toner cartridge is manufactured to match the physical dimensions and functionality of the TN-421BK series, allowing straightforward installation and reliable operation in compatible Brother devices. It supplies consistent black toner density for crisp text and sharp contrast on standard office media. The cartridge offers predictable page yield for planning consumables and reduces downtime by providing a ready replacement to original parts.
Suitable for
Printing monochrome documents, invoices and reports
Small office and home office (SOHO) printing needs
High-volume black-and-white printing tasks where OEM-equivalent capacity is required
Key specifications
Colour: Black
Form factor: Compatible replacement designed to fit TN-421BK series printers
Intended use: Monochrome laser printing
Media compatibility: Standard office paper and common laser-printable media
Storage: Store in a cool, dry place away from direct sunlight to preserve toner quality
How to use
Turn off the printer and open the front cover or toner access panel according to the printer manufacturer’s instructions. Remove the empty TN-421BK cartridge following the device’s guidance, unpack the BLACKPOINT replacement and remove any protective seals. Insert the compatible cartridge into the correct slot until it clicks into place, close the cover and power the printer back on. Perform a test print and, if necessary, run the printer’s alignment or cleaning routine to ensure optimal print quality.
Usage recommendations
To maintain consistent print quality, handle the cartridge by its casing to avoid contact with the toner outlet, store spare cartridges upright in original packaging, and install replacements promptly when the printer indicates low toner. Use recommended paper types and printer maintenance routines to extend both cartridge and device life.

## FAQ

### How much does the Toner BLACKPOINT for Brother TN-421BK cost, and is it available for purchase?

The price is 41.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All BLACKPOINT products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BLACKPOINT service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11841639/67241047_large.webp