HP 712/ 712B BLACK 80- ML CARTRIDGE DETAIL AS PER BUYER SPECIFICATION DOCUMENT, HP 712/ 712B MAGENTA 29- ML CARTRIDGE DETAIL AS PER BUYER SPECIFICATION DOCUMENT, HP 712/ 712B YELLOW 29- ML CARTRIDGE DETAIL AS PER BUYER SPECIFICATION DOCUMEN, HP 712/ 712B CYAN 29- ML CARTRIDGE DETAIL AS PER BUYER SPECIFICATION DOCUMENT