Across an unprecedented range of substrates, the LEJ-640 prints ECO-UV inks in CMYK + White + Clear. The LEJ-640 can be configured with any of these three ink combinations:
- CMYK + White + Clear
- CMYK + White + White
- CMYK + Clear + Clear
As the most versatile ink configuration, CMYK + White + Clear can be used for a wide range of applications with matte or gloss varnish and unique textured graphics.
The CMYK + White + White mode achieves higher opacity without slowing down the printing with overprinting. It’s perfect for white text and graphics, undercoats and to enhance the brightness of four-color prints. The white produced with this ink configuration can be up to 1.5 times more opaque than the normal white, all without requiring a complicated workflow or overprinting.
ECO-UV Clear ink adds remarkably rich special effects ranging from matte and high-gloss finishes for area highlights or floods to custom-textured effects such as faux leather, crocodile skin and even Braille. The CMYK + Clear + Clear mode can build up three-dimensional textures twice as fast as the normal ink mode and can produce more dramatic effects with bigger reliefs.
ECO-UV ink shines for indoor graphics, offering superior scratch and chemical resistance. Outdoors, ECO-UV ink lasts up to two years when Clear is applied as a finish and up to six months without Clear. ECO-UV ink is packaged in no-mess 220ml cartridges and safe after curing. With ECO-UV ink, proper ventilation is recommended. The LEJ-640 series is ventilation-ready, featuring a connector on the back of the printer for easy connection with an air filtration system.
ECO-UV ink adheres to a wide range of treated and untreated substrates with exceptional color gamut. Instant-drying and flexible, ECO-UV ink produces prints that can be stretched and applied around curved surfaces and edges without cracking.
Unsurpassed Media Compatibility
VersaUV supports printing on BOPP, PE, PET film, offset printing stock and more. The low heat UV LED lamps allow printing on heat-sensitive media such as shrink wrap, pressure sensitive media and paper stocks with no risk of damaging the substrate. You can also use the VersaUV to create original patterns and 3D domed corporate logos directly onto synthetic and natural leathers and to customize window coverings, tapestries and other interior items. The LEJ-640 enables printing on rigid media such as corrugated cardboard for folding cartons, polycarbonate sheets for membrane switch applications and Foamcore or Gatorfoam for POP and exhibit walls.
Automated Print Head Management
A built-in sensor checks for proper media thickness preventing head strikes and ensures highly reliable, 1440×1440 dpi printing on the widest range of substrates.
Production Print Speeds
The LEJ-640 features large UV-LED lamps to expedite production with a maximum print speed of 133 sqft./hr. in High Speed mode. The 1440×1440 dpi mode produces press-proofs with flawlessly smooth gradations, super fine details and sharp text on actual substrates used for production. Roland Intelligent Pass Control™ ensures consistent print quality with virtually no signs of banding in all print modes.
State of the Art Curing System for Matte and Gloss Finishes
The VersaUV’s ability to reposition its twin UV-LED lamps automatically increases productivity in high quality modes and allows simulation of matte and gloss varnishing effects.
Innovative Automated Ink Circulation System
The automated Ink Circulation System circulates the white ink in the LEJ-640 every eight hours to prevent the settling of pigments in the lines. In addition, this system controls the discharge of white ink and minimizes waste by monitoring the white ink usage and the types of jobs that are printed.
By preventing unnecessary discharges and minimizing the amount of ink that is subject to settling, this automated system significantly reduces the ink waste and eliminates manual maintenance procedures that add labor and decrease productivity.
Note that, due to the nature of white ink, the white ink cartridge still needs to be shaken prior to use each day as the ink in the cartridge is not circulated by this system.
VersaUV LED lamps last up to 10,000 hours, ten times longer than conventional UV lamps.
While conventional UV lamps can reach temperatures as high as 1500°F (800°C) requiring complex heat management systems, the LED lamps on the LEJ-640 generate very little heat. This ensures that the UV lamps virtually eliminate any heat-related risks such as substrate damage and head crash caused by media deformation.
LED lamps can be turned on and off instantly and are ready to use immediately after the printer is turned on. By contrast, conventional curing systems may take up to ten minutes to reach the targeted output level. Conventional curing systems also require complex, noisy and failure-prone shutter systems to protect substrates and head capping systems from exposure to UV light and heat.
VersaWorks RIP Software
VersaWorks RIP software has been developed exclusively for Roland inkjet printers and printer/cutters. This true Adobe PostScript 3 RIP ensures exceptional production output with unmatched ease of use and incorporates the latest Adobe CPSI 3019 engine.
VersaWorks supports the Roland Color system which accurately reproduces more than 1,000 spot colors from color charts and swatch books. For the VersaUV series, VersaWorks also includes the Roland Texture Library featuring 72 ready-to-use textures that can be applied to designs by layering the LEJ’s clear coat ink. For white ink applications, you can select from either single pass or dual pass modes.
With VersaWorks, you can choose from print options including a high-speed mode for production banner printing, the MAX Impact preset for vivid outdoor graphics and Artistic mode for exceptional indoor graphics. In addition, VersaWorks features Variable Data Printing and supports up to four Roland devices simultaneously including printers, printer/cutters and cutters. It automatically estimates the ink usage and print time for each graphic so you can accurately monitor time and costs.
VersaWorks features include embedded ICC profile support, ink level adjustment tools, soft proofing capabilities, error diffusion for outstanding print quality and advanced cropping, tiling and nesting options. Support for Roland cutters allows you to pair the LEJ with a Roland cutter to cut flexible media in a seamless workflow. VersaWorks is fully compatible with Windows 7, Vista, XP and 2000.
Roland Intelligent Pass Control
Across a wide variety of applications and media, Roland Intelligent Pass Control technology delivers outstanding image quality in all print modes while eliminating virtually any signs of banding. First introduced in the SOLJET PRO III series, this patent-pending system ensures that graphics look great when viewed indoors or outdoors, up close and at a distance.
Advanced Media Take-Up System
The LEJ-640 includes an automated media take-up system to facilitate precision unattended printing when using roll media. This pre-assembled unit includes an advanced tension-controlled take-up system for optimum media feed and tracking.
Roland understands that busy shops need to maximize the layout of their workstations and printing equipment. High-speed Ethernet network connectivity is built-in standard to the LEJ-640, so it can quickly process gigabytes worth of image data for everyone in your shop.
Energy Efficient and Ozone Free
The LEJ-640 requires a fraction of the power required by conventional UV printers and can be operated on a standard electrical outlet without an additional power supply. This low power design automatically saves thousands of dollars in electric bills each year and reduces considerably the emission of green house gases.
In addition, the LEJ-640 uses a light source that is completely ozone free and emits light in the range called Near-UV of the UV spectrum, making it a safe alternative to conventional UV lamps. The LEJ-640 carries Roland’s Eco-Label for environmental compliance.
Roland OnSupport Online Production Assistance
The LEJ-640 features Roland OnSupport, an online customer support system allowing users to remotely track the status of the printer’s activities. The system sends e-mails to users notifying them of important information such as when a job is completed and when ink is running low. With Roland OnSupport, users can also quickly download firmware updates and important product information by accessing an exclusive website with just one mouse click.
As with all Roland inkjet printers, the LEJ-640 is a virtually bulletproof production machine. With regular maintenance, it will provide years of trouble-free service. But, unlike most inkjets that require daily maintenance, the LEJ-640 requires servicing significantly less often.
Two-Year Trouble-Free Warranty
There’s no question that Roland inkjets combine unbeatable performance with legendary Roland reliability. As further proof of their unmatched reliability, Roland is pleased to offer Roland Care including an unprecedented Two-Year Trouble-Free Warranty for all AdvancedJET, Hi-Fi Express, Hi-Fi JET, SOLJET, VersaCAMM VS, VersaArt and VersaUV models. All that’s required for this bonus is return of the registration card with installation information within 60 days of your purchase and confirmation* that Roland inks are running in the machine.
*Continuous exclusive use of Roland Inks during the first two years of ownership is required to qualify for the free second year of limited warranty coverage. Customers may be asked to provide proof-of-purchase to substantiate uninterrupted use of Roland Inks. Additional Terms and Conditions apply.
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