The LEJ-640 represents the height of print innovation by offering both flatbed and roll-fed printing in a single device. Printing CMYK, White and Clear Coat inks on virtually any substrate up to 13mm thick, the LEJ is capable of producing a massive range of large-format graphics.
Print on rolls of paper and film and then simply attach the rear and front folding tables in minutes to enable printing on full sheets of rigid media. Supports hundreds of media options including synthetic papers, BOPP, PE, PET film, corrugated cardboard, foam board, Gatorfoam® and more.
Eliminate Head Strikes with Smart Sensor Technology
The LEJ-640 has a built-in sensor to check for proper media thickness, preventing head strikes and ensuring reliable printing on the widest range of substrates.
Advanced UV Inks with Clear Coat Effects.
Produce graphics with high-density colour and a wide colour gamut with ECO-UV inks in CMYK, White and Clear. Both ECO-UV and ECO-UV S formulations produce prints that do not need degassing and stretch up to 220 percent around edges, corners and curved surfaces. Clear Coat ink creates spectacular textures and finishing effects on displays, prototypes and other high-end applications.
Four Ink Configurations Including Clear Coat Ink
ECO-UV inks adhere to a wide range of treated and untreated substrates and offer unmatched colour gamut and image definition. They produce prints that require no degassing and can be stretched and applied around curved surfaces and edges without cracking. ECO-UV inks are packaged in convenient 220ml cartridges.
The LEJ-640 features a Clear Coat ink option for producing stunning texture effects, including matte, gloss varnish and embossed finishes. Offering superior protection for scratch and chemical resistant graphics, both ECO-UV and ECO-UV S last up to six months on outdoor applications with ECO-UV ink lasting up to two years when used in combination with a Clear Coat. To ensure simple ventilation set-up for use with ECO-UV inks, the LEJ-640 features a ventilation hood for easy connection to an air filtration system.
Efficient Ink Usage
The LEJ-640’s Automated Ink Circulation System increases image quality while lowering running costs. It prevents pigments from settling in the ink lines and provides a consistent ink density that reduces waste and produces exceptional image quality, even on long print runs.
Powerfully efficient and ozone-free LED lamps.
The LEJ-640 UV Printer features large LED lamps that cure fast and expedite print production. Lasting up to 10,000 hours, ten times longer than conventional UV curing lamps, the lamps operate at a very low-heat and enable printing on heat-sensitive materials without substrate damage. They can be instantly turned on or off for a true on-demand operation that requires no warm-up time. The LEJ-640 contains a light source that is entirely ozone free, emitting light in the range known as Near-UV of the UV spectrum, making it a safe alternative to conventional UV lamps.
Roland DG Intelligent Pass Control
Across a wide variety of applications and media, Roland DG Intelligent Pass Control technology delivers outstanding image quality in all print modes while eliminating virtually any signs of banding. This patent-pending system ensures that graphics look great when viewed indoors or outdoors, up close and at a distance.
Easy and Energy-conscious Electrical Set-up
The LEJ-640 offers the lowest power consumption in its class and unlike latex and other large format printing technologies, it simply requires a standard electrical outlet without additional power supply or set-up. Requiring a fraction of the power that competitors’ flatbed printers demand, it significantly saves on electrical costs each year.
Reliability, Warranty and Support
Built to provide years of reliable service – even in the most demanding print environments – Roland DG’s wide format printers come with a 1, 3 or 5 Year Warranty.
Roland DG has earned a reputation for long-lasting, high-performance devices, backed by first-rate customer service. This support includes expert technical assistance, videos and free Roland software updates for the lifetime of the machine.
Roland DG's international ISO certifications are your assurance of quality products and service.
Specifications
| Printing method |
Piezoelectric inkjet / Grit roller feed |
| Acceptable media - Width |
Roll media: 210 to 1625 mm / Rigid or cut sheet: 250 to 1625 mm |
| Acceptable media - Thickness |
Roll media: Maximum 39 mil (1.0 mm) with liner / Rigid or cut sheet: 0.51 in. (13 mm) |
| Acceptable media - Weight |
Roll media: Maximum 40 kg / Rigid or cut sheet: Maximum 12 kg |
| Acceptable media - Roll outer diameter |
Maximum 210 mm |
| Acceptable media - Core diameter |
3 in or 50.8mm (requires optional flanges) |
| Media take-up system |
Maximum 210 mm outer diameter / Maximum 40 kg weight |
| Printing width |
Maximum 1615 mm |
| Maximum Printing Speed |
133 sqft./hr. in CMYK mode |
| Ink Cartridges - Type |
259 to 1615 mm ECO-UV inks |
| Ink Cartridges - Capacity |
220 ml or 500 ml (± 5 ml) |
| Ink Cartridges - Colors |
6 colors (Cyan, Magenta, Yellow, Black, White and Gloss) |
| Ink Cartridges - Configuration |
CMYK+Gloss+White, CMYK+White+White or CMYK+Gloss+Gloss |
| Ink curing unit |
Dual UV LED Lamps |
| Printing resolutions |
360x720 dpi, 720x1080 dpi, 720x1440 dpi, 1440x1440 dpi |
| Distance accuracy |
Error of less than ± 0.3 % of distance traveled, or ± 0.3 mm, whichever is greater. |
| Interface |
Ethernet (10 BASE-T / 100 BASE-TX, automatic switching) |
| Power-saving feature |
Automatic sleep feature |
| Power supply - Voltage and frequency |
AC 100 to 240 V ± 10%, 50/60 Hz |
| Power supply - Required power capacity |
Maximum 5.7 A |
| Power Consumption - During operation |
Maximum 500W |
| Power Consumption - Standby mode |
Approx. 15.2 W |
| Dimensions (with stand) |
Without table unit : 3184[W]x836[D]x1281[H] mm / With table unit: 3184[W]x3658[D]x1281[H] mm |
| Weight (with stand) |
Without table unit: 240 kg / With table unit: 316 kg |
| Environment - Power on |
Temperature: 20° to 32°C (22°C or more recommended) / Humidity: 35 to 80% (no condensation) |
| Environment - Power off |
Temperature: 5° to 40°C / Humidity: 20 to 80% (no condensation) |
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