CLT-R515 R515 Drum chip for SL-C515 C565 C565fW printer laser cartridge chip Replacement drum chip compatible with SL-C515, SL-C565, and SL-C565fW printers.Designed to work with the laser printer cartridge to monitor drum unit status and support proper functioning of the printing system.Installs directly onto the cartridge to reset drum counter and maintain printer.