Black ink cartridge for Ricoh GX e7700N printer. The Ricoh series of sublimation printers provide an excellent solution for creating vibrant sublimation transfers. The gel based ink system requires less maintenance than traditional ink jet sublimation printers. Color reproduction is excellent with Sawgrass Technologies PowerDriver print software. After purchasing the ink, the PowerDriver software can be downloaded for free from Sawgrass Technologies website. Call or email our customer service department if you have any questions.