The Secap 30K Addressing Printer offers a dynamic postage delivery system, ideal for offices that send out mail on a frequent basis. Each Genuine HP Ink Cartridge has a space saving design which easily installs, to reduce downtime normally spent on complicated replacement procedures. We carry the OEM / Genuine HP C6168A red spot color ink cartridges which have been designed to easily fit into your Secap 30 K postage machine. We guarantee excellent postage handling capabilities with our HP print cartridges or we will refund your money within 90 days of purchase. And all of our Genuine HP cartridges for your Secap 30-K printer will last up to 2 years for definitive convenience and performance.