SOLJET EJ-640 Large Format Inkjet Printer

SOLJET EJ-640 Specifications

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.)
Types 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*4

Error of less than ±0.3% of distance travelled, or ±0.3 mm, whichever is greater

Media heating system *5  Print heater

Setting range for the preset temperature: 30 to 45ºC (86 to 112ºF)


Setting range for the preset temperature: 30 to 55ºC (86 to 131ºF) 


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

During standby 75W 
Acoustic noise level 

During operation

62 dB (A) or less

During standby 45 dB (A) or less 

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 785mm (D) x 1520 (H) mm (108 x 31 x 59.9 in.) 

Weight (with stand) 

220 kg (485 lb) 

Included items 

VersaWorks Dual RIP Software, Bulk Ink system, take-up system, dedicated stands, power cable, media clamps, media holders, replacement blade for separating. 

Print Modes Resolution Pass Speed
Max Speed (Banner) 360x360 1 102 sqm/hr (1098 sqft/hr)
Billboard (Banner) 540x360 2 63 sqm/hr (678 sqft/hr)
High Speed (Banner) 540x360 4 30 sqm/hr (334 sqft/hr)
Standard (Banner)
5 24 sqm/hr (258 sqft/hr)
High Quality (Banner) 720x1440
9 13 sqm/hr (140 sqft/hr)
High Speed (Vinyl) 360x720
4 30 sqm/hr (323 sqft/hr)
Standard (Vinyl) 720x720
6 20 sqm/hr (215 sqft/hr)
8 14.6 sqm/hr (161 sqft/hr) 
High Quality (Vinyl) 720x1440 12 10 sqm/hr (108 sqft/hr)
High Speed (Banner) 540x360 8 16 sqm/hr (172sqft/hr)
Standard (Banner) 720x720
10 12 sqm/hr (129 sqft/hr)
High Quality (Banner) 720x1440
18 6 sqm/hr (65 sqft/hr)
High Speed (Vinyl) 360x720
8 15 sqm/hr (161 sqft/hr)
Standard (Vinyl) 720x720
12 10 sqm/hr (108 sqft/hr)
High Quality (Vinyl) 720x1440
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 mm (3 in.) in diameter. To use 50 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. •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.

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

Roland Versa Works Dual 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 2 GB 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
Ethernet Connection  100 mbps  
Other Internet connection recommended

Roland VersaWorks Dual is a 32-bit application and therefore runs in WOW64 (Windows-on-Windows 64) when running on 64-bit versions of Windows operating systems.