Riso has expanded its Valezus line of cut-sheet inkjet presses with the introduction of two ‘next generation’ models targeted at the production print market to meet varying job demands that are difficult to handle efficiently on continuous-feed presses.

Making its debut at Igas 2022 in Tokyo in November 2022, the Valezus T2200 is a twin-engined full-colour SRA3 cut-sheet inkjet printer that replaces the previous T2100 released in August 2019. It features a new and enhanced print engine to deliver higher productivity, making it capable of a duplex printing speed of 330ppm.

The T2200 is equipped with two high-capacity feeder/stacker units, each able to hold up to 4000 sheets, for a total of 8000 sheets. The two units can be switched while the printer is active, allowing loading/unloading of paper without stopping printing. The stacker unit is equipped with a jogger mechanism and dedicated cart for smooth transfer to finishing.

The new single-engined Valezus T1200 is aimed at both short and long-run full-colour transactional printing at 165ppm. Equipped with a 4000 sheet feeder and stacker, the T1200 is described as a space-saving production printer that Riso says achieves one of the highest productivity figures in its class. Both models support uncoated papers only, from 46 to 210gsm.

Tatsuo Murakami, managing director at Riso UK, said, ‘While the production print market is changing and evolving all the time, there is a constant need for flexibility, quick turnaround, and, ultimately,  profitability. 

‘Both of these new devices meet those requirements and present companies with unique opportunities to meet volume demands that cannot be handled by other printing technologies.’

Both new presses use a new high-density ink formulation from Riso that is said to further improve the quality of the output, making them even more suited for production print. The oil-based pigment inks are used in five colours, standard CMYK plus a grey. Somewhat unusually, the presses print black at up to 600 x 600dpi but the other colours at 300 x 300 or 300 x 600dpi. The inks do not require the drying heaters needed for water-based alternatives and so consume less energy, as well as not requiring ducting for excess heat removal.

The Valezus range supports PDF and PostScript input as well as AFP/IPDS used in transactional and some direct mail applications; the T1200 is also compatible with an EFI Fiery controller.

Both of the new models will be on show at Hunkeler Innovation Days 2023, to be held in Lucerne, Switzerland from 27 February  27 to 2 March. Digital Printer will be previewing and reporting from this event.