<p>The Brother TN3615 toner cartridge is a high-capacity printing solution designed for larger offices that require consistent, high-quality output and cost-effective printing. With its ultra-high yield capacity, the TN3615 cartridge is capable of printing up to 18,000 pages, making it an ideal choice for businesses with high-volume printing needs.</p><p>The Brother TN3615XL toner cartridge is the highest capacity print cartridge designed for the busiest of offices that require consistent, high-quality output and even more cost-effective printing. With its ultra-high yield capacity, the TN3615XL cartridge is capable of printing up to 25,000 pages, making it an ideal choice for businesses with higher volume printing needs.<br></p><p>In addition to the toner cartridges, Brother also offers the DR3605 drum unit, which works in conjunction with the toner cartridges to transfer the toner onto the paper. The drum unit plays a crucial role in the printing process, ensuring consistent and precise image transfer for high-quality prints. It is essential to replace the drum unit periodically to maintain optimal print quality and prolong the life of the printer.<br></p><p>Together, the Brother TN3615 and TN3615XL toner cartridges, along with the DR3605 drum unit, offer a reliable and efficient printing solution, making them ideal choices for busy offices and large workgroups seeking consistent print quality and cost-effective printing solutions.</p>