@shangyiofficeequipment: [Riso GD9630} Features: It significantly reduces the cost per page and improves efficiency for high-volume ORF printing, while maintaining comparable print GD9 quality. Maximum Print Format: A3. Suitable for: Large offices, copy centers, schools, and institutions. Common Use Cases: Black and white or color documents, promotional materials, exam papers, etc. #Riso GD9630 Riso GD9631 Riso GD7330 Up to160ppm5color(CMYK+BK)