Yup, the Gunsjet R4 is a new series of wide format printers which uses proven Ricoh Gen4 printerheads, with the roll-fed R4-SR/WR models being fitted with eight of these as standard, staggered in two lines. The biggest 3.3m model also comes in a 12-head version. However you can upgrade the other versions to 12 or even 16 heads which significantly increases the productivity.
The printer comes from Digitex, a firm that has been developing wide-format solutions since 1995. The company is headquartered in Hong Kong, though its factory is in mainland China. There is solvent model which called R4-SR. Besides, there is also the sublimation model, known as the R4-WR.
There are three sizes available: 1900mm, 2600mm and 3300mm.
The Ricoh printheads are flexible enough to work with both eco solvent and aqueous inks, though once you’ve used one type of ink you can't switch it back to the other. There are eight ink channels with the sublimation inkset using two sets of CMYK, while there are eight solvent colours – CMYK plus light cyan, light magenta, orange and green.
The ink itself is kept at optimum temperature thanks to a two-stage heating process which ensures that the ink is at the best possible level of viscosity. There’s a negative pressure system that pushes the ink through to the heads and the whole thing is easily monitored through digital display gauges.
The above information is found from online magazines, you may refer to Gunsjet's website (
GUNSJET | Printer, Ink and Media). The website looks cool! The website shows more detail specification of Gunsjet R4 printers.
