RISO KAGAKU CORPORATION – Proprietary Heatless, Oil-based Pigment Ink Technology Combines High Productivity with Eco-friendly Engineering for High-volume Printing – RISO KAGAKU CORPORATION (“RISO”) has announced the launch of the ComColor GN Series, its latest lineup of ultra-high-speed full-color inkjet printers. Tailored for transactional documents (e.g., invoices), manuals, and enveloped mailings via modular options,…