The 64-inch wide machine features two of Roland’s latest inline piezo inkjet print head technology and is available as a seven- or eight-colour configuration.
Each eight-channel head is loaded with colours in reverse to achieve mirrored ink order in each direction, avoiding colour order banding and tonal irregularities.
The print heads fire seven different droplet sizes that are analysed by Roland’s Versaworks RIP to select the best three sizes optimised for the print mode. This results in smoother gradations and solid colours.
Roland has also introduced its latest ink products, Eco-Sol Max2, which are exclusive to the Soljet Pro4 XR-640. The new range supports light black to enhance accuracy of grey colour reproduction and subtlety of skin tones and neutral hues.
The latest Soljet features dragknife technology to print and cut unattended in two passes according to vectors drawn by Versaworks.
Roland business manager for commercial print Mat Drake said: "The Soljet has always been our flagship production printer and is aimed at larger sign shops and display producers who have a volume of business to take advantage of the 49.1m2/h speed but their position in the market is based on quality output."
The Soljet Pro4 XR-640 machine will be commercially launched from November at a starting price of £19,999 including Versaworks RIP software.