Ink cartridge Incore for Brother LC-421XLBK, Black 12 ml

Incore replacement ink cartridge for Brother LC-421XLBK in black supplies 12 ml of ink for compatible inkjet printers that accept LC-421XLBK cartridges. This cartridge is intended as a compatible consumable for home and small office printing tasks, enabling monochrome document and graphic printing with a simple cartridge exchange procedure. The design focuses on straightforward installation and reliable ink flow for standard text, forms and occasional photo prints in black.

Advantages

The Incore black ink cartridge delivers a cost-effective alternative to original manufacturer cartridges while maintaining print legibility and consistent black density across pages. It is supplied ready to install and engineered to fit printers compatible with the LC-421XLBK form factor, offering predictable performance for everyday printing needs. The cartridge capacity of 12 ml supports multiple pages of text and graphics before replacement is required.

Suitable for

• Monochrome document printing such as letters, invoices and reports
• Black-and-white graphics and charts
• Home and small office inkjet printers that accept LC-421XLBK compatible cartridges
• Quick cartridge replacement to minimize printer downtime

Key specifications

• Ink color: Black
• Ink volume: 12 ml
• Compatibility: Designed to fit printers accepting LC-421XLBK form-factor cartridges
• Intended use: Monochrome text, graphics and occasional photo printing
• Cartridge type: Replacement / compatible ink cartridge

How to use

Turn the printer power on and open the cartridge access door according to the printer manufacturer’s instructions. Remove the empty cartridge by gently releasing the locking mechanism, then unpack the Incore cartridge and remove protective seals or tape if present. Insert the cartridge into the appropriate black cartridge slot, press until it clicks into place, and close the access door. Allow the printer to recognize the new cartridge; perform a test print or alignment if the printer prompts you to do so.

Usage recommendations

Store unused cartridges in a cool, dry place away from direct sunlight. To maintain print quality, use the cartridge within the manufacturer’s recommended period after opening and run occasional nozzle checks or cleaning cycles if print density decreases.