Unattended long-run production with peace of mind

The Roland Ink System ensures stable printing with one litre airtight sealed pouches and in four-colour mode, provides two litres per colour. The proprietary Roland Ink Switching System automatically switches to the backup ink pouch when the primary pouch runs out to enable continuous printing.

While you’re away from the printer the Roland Printer Assist iPad*app allows remote management of common printer functions and Roland OnSupport™ enables remote tracking of production status with automated e-mail notifications.

Use the Predictive Ink Calculator in VersaWorks Dual to monitor ink supply for the jobs you’ve posted to the queue.

* iPad is a trademark of Apple, Inc.


Includes Latest VersaWorks 6 RIP Software

VersaWorks 6 expands your print capabilities and maximises the power of your Roland devices with the latest features to enhance the world’s most popular RIP software.

• HARLEQUIN RIP dual-core engine and native 64-bit processing – effective processing of PDFs with shadows and transparencies
• Icon-based interface with drag-and-drop functionality
• Five print queues and the ability to save and store unlimited queue settings
• Special Color Plate Generation – auto-generate White, Gloss and other ink layers
• Built-in Pantone and Roland Color spot colour libraries
• All the advanced and ease-of-use features of VersaWorks

Turn up the volume of your production

The SOLJET EJ-640 has been developed with cost-efficient high-performance productivity at the forefront. Coupled with the reliability and durability of Roland DG technology, the EJ-640’s sturdy construction delivers exceptional quality output across a wide range of applications including outdoor and indoor signs, banners, posters, wall and vehicle wraps and much more. Maximise your profitability with low running costs and high volume production.

New economical Roland EJ Inks

New specially formulated quick-drying EJ inks produce bold, exciting colours and offer low consumption and low running costs. The inks also provide unmatched long-term outdoor durability, scratch and chemical resistance, broad media support and a wide spectrum of colour. Available in 1 litre cartridges, to run without frequent cartridge changes, and in 4- or 7-colours, including Light Black. Choose dual CMYK or CMYKLcLmLk configuration for fine details and smooth gradations.

Rugged construction for stability and durability

The SOLJET EJ-640’s strong, sturdy chassis copes well with high production speeds and the large diameter grit roller aids media transit through the printer. The EJ-640 is able to support heavy roll media up to 40kg and features a front-mounted take-up unit. The three-part patent-pending wiper system is designed to significantly reduce build-up around the edges of the print head, decreasing wear and tear and prolonging its life.

Impressive productivity and stunning quality output

Staggered print heads cover a large print width for increased production and are arranged in a mirrored formation to reduce the chance of chromatic banding. Dual eight-channel Piezo inkjet heads house 180 nozzles per channel while the patent-pending Roland Intelligent Pass Control system controls dot placement between passes to produce exceptional solid colours and photographic image quality. Variable dot control achieves smooth gradations and deep image saturation on a broad range of media.

The advanced adjustable media feed which enables accurate centring of media and smooth, precise transit through the printer and the front mounted take-up unit keep pace with high-speed production.

Quick-dry finish for efficient production

The EJ-640 dries prints quickly, even in high-speed mode, for immediate finishing, installation or collection by the take-up system. The integrated tri-heater system features:

* Pre-heater to improve media receptiveness
* Print heater to accelerate ink fastness and brightness
* Dryer to accelerate drying and ensure greater productivity and scratch resistance

An optional dryer/blower unit evenly dries large prints and enhances image saturation at high speed.


Printing technology Piezoelectric inkjet
Media Width 259 to 1625 mm (10.2 to 64 in.)
Thickness Max. 1.0 mm with liner
Roll diameter Max. 210 mm (8.3 in)
Roll weight 40 kg (88 lb)
Core diameter *1 76.2 mm (3 in.) or 50.8 mm (2 in.)
Printing Width *2 Max. 1615 mm (63.6 in.)
Ink Type EJ INK
Capacity 1000 cc cartridge
Colours 4 colours (Cyan, Magenta, Yellow, Black)
7 colours (Cyan, Magenta, Yellow, Black, Light Cyan, Light Magenta, Light Black)
Print resolution (dots per inch) Max. 1440 dpi
Distance accuracy *3 Error of less than ±0.3% of distance travelled, or ±0.3 mm, whichever is greater
Media heating system *4 Print heater and preheater set temperature: 30 to 45ºC (86 to 113ºF)
Dryer set temperature: 30 to 55ºC (86 to 131ºF)
Connectivity Ethernet (10BASE-T/100BASE-TX, automatic switching)
Power-saving function Automatic sleep feature
Power requirements AC 100 to 120 V ±10%, 11 A, 50/60 Hz or AC 220 to 240 V ±10%, 5.5 A, 50/60 Hz
Power consumption During operation 1450 W
During standby 75 W
Acoustic noise level During operation 62 dB (A) or less
During standby 45 dB (A) or less
Environment Power on Temperature: 15 to 32ºC (59 to 90ºF) [20ºC (68ºF) or more recommended], Humidity: 35 to 80%RH (no condensation)
Power off Temperature: 5 to 40ºC (41 to 104ºF). Humidity: 20 to 80%RH (no condensation)
Dimensions (with stand) 2750 (W) x 785 (D) x 1520 (H) mm (108 x 31 x 59.9 in.)
Weight (with stand) 220 kg (485 lb)
Included items VersaWorks 6 RIP Software, Bulk Ink system, take-up system, dedicated stands, power cable, media clamps, media holders, replacement blade for separating, User’s Manual, etc.
Print Modes Resolution Pass Speed
Max Speed (Banner) 360 x 360 1 102 sqm/hr (1098 sqft/hr)
Billboard (Banner) 540 x 360 2 63 sqm/hr (678 sqft/hr)
High Speed (Banner) 540 x 360 4 30 sqm/hr (322 sqft/hr)
Standard (Banner) 720 x 720 5 24 sqm/hr (258 sqft/hr)
High Quality (Banner) 720 x 1440 9 13 sqm/hr (140 sqft/hr)
High Speed (Vinyl) 360 x 720 4 30 sqm/hr (322 sqft/hr)
Standard (Vinyl) 720 x 720 6 20 sqm/hr (215 sqft/hr)
720 x 720 8 14.6 sqm/hr (157 sqft/hr)
High Quality (Vinyl) 720 x 1440 12 10 sqm/hr (107 sqft/hr)
High Speed (Banner) 540 x 360 8 16 sqm/hr (172sqft/hr)
Standard (Banner) 720 x 720 10 12 sqm/hr (129 sqft/hr)
High Quality (Banner) 720 x 1440 18 6 sqm/hr (64 sqft/hr)
High Speed (Vinyl) 360 x 720 8 15 sqm/hr (161 sqft/hr)
Standard (Vinyl) 720 x 720 12 10 sqm/hr (107 sqft/hr)
High Quality (Vinyl) 720 x 1440 20 5.5 sqm/hr (59 sqft/hr)

*1 The media holder for this machine is exclusively designed for media rolls with a paper tube measuring 76.2 mm (3 in.) in diameter. To use 50.8 mm (2 in.) media rolls the optional media flanges are required.

*2 The length of the production run is subject to the limitations of the software program.

*3 Media type: Media specified by Roland DG Corporation. Temperature: 25°C (77°F), humidity: 50% Roll media must be loaded correctly. Excluding expansion/contraction of the media. Not guaranteed when the preheater, print heater, or dryer is used. Assume all correction and adjustment functions of this machine have been made properly. Print travel: 1 m.

*4 Warm-up is required after the power is turned on. This may require 5 to 20 minutes, depending on the operating environment. Depending on the ambient temperature and media width, the preset temperature may not be reached.

VersaWorks 6 System Requirements
Operating System Windows® 10 (32/64 bit), Windows® 8.1 (32/64 bit), Windows® 7 Ultimate/Professional (32/64 bit)
Hard-disk file system NTFS Format
CPU Intel Core™ 2 Duo, 2.0 GHz or faster recommended
RAM 2GB or more recommended
Video card and monitor A resolution of 1280 x 1024 or more recommended
Free hard disk space 40 GB or more recommended
Optical drive DVD-ROM
Ethernet Connection 100 mbps
Other Internet connection recommended

Specifications, designs and dimensions listed may be subject to change without notice.

Any questions?