The Printronix 255050 - 402 Line Matrix Ribbon Cartridge is engineered for maximum printing efficiency and usability. This cartridge comes in a convenient 4 - pack, providing a total yield of 30, 000 pages. It features a black print color, ensuring high - quality output for your printing needs. The cartridge is designed to be easily handled, reducing downtime and mess during replacement. With its unique design, the ribbon is flipped and rotated during operation, utilizing both sides for more uniform wear and consistent print quality. Compatible with Printronix models P7000, P7000HD, and P7000HDZT, this ribbon cartridge is an essential accessory for any office environment that relies on line matrix printing.