The RISO EZ591 Digital Duplicator

Feature-Rich, User-Friendly Digital Duplicator

Offering exceptional productivity and value, RISO’s EZ591 digital duplicator is the best choice for a mid-range model with a high-end feel! New features, advantages, and benefits, including the new ECO Mode and Photo Adjustment, make the EZ591 more than just the flagship of the EZ series. Like all RISO digital duplicators, the EZ591 brings versatile printing capabilities to any environment. The new Photo Adjustment option permits more control over photo reproduction, such as contrast and tone curve adjustments. Additionally, the EZ591 will allow you to print on a wide range of stocks from thick media to odd-sized and die cut stocks, recycled papers, envelopes, and more!

Versatility at Work

The EZ591 is a ledger-sized digital duplicator with an integrated GDI controller, offering 600e dpi imaging, 11” x 17” printing and scanning, glass platen, and a large intuitive LCD touch panel. Additionally, the EZ591 has the ability to print directly from a USB flash drive, offering more control and improved output over scanned originals. As with all EZ duplicators, the EZ591 is equipped with the RISO i Quality system for optimum performance.

Go Green

The EZ591 is equipped with an all new ECO Mode, setting new standards for environmentally-friendly printing! ECO Mode decreases the printing pressure and the LCD touch panel brightness, reducing power consumption by 5%. The EZ591 is ENERGY STAR certified, making it a sound environmental choice!

Additional Features

USB Flash Print: Achieve digital print quality by no means of direct connectivity! For confidential or last-minute print jobs, you can simply use your USB flash drive to get the job done. It is as simple as saving your documents to your USB drive and using the tools to queue jobs up for printing.

User Management

User Management allows you to set up 100 accounts and 32 groups, making it simple to budget by department or user groups, eliminating the need for key card counters. This feature allows you to take control of your printing and budgeting needs, as you will be able to set up new user groups, rename, disable, limit usage, and get usage reports!

RISO i Quality

Two-way communications between RISO i Quality System-equipped printers and their suppliers is made via integrated RF (Radio Frequency) tags. These tags relay information to the printer, assuring optimum first print quality and superior output throughout the entire job.


Master-Making/Printing Methods

High-speed digital master-making/Fully automatic stencil printing

Original Type

Book, Sheet

Original Size

When using the Glass Platen : 1 31/32″ x 3 9/16″-12 3/16″ x 17″ (50 mm x 90 mm-310 mm x 432 mm)
When using the AF-VI (option) : 3 15/16″ x 5 27/32″-12 3/16″ x 17″ (100 mm x 148 mm-310 mm x 432 mm)

Original Paper Weight

When using the Glass Platen: 22 lb (10 kg) or less
When using the AF-VI (option): 13 lb bond-34 lb bond (50 gsm-128 gsm)

Scanning Area (max.)

11 11/16″ x 17″ (297 mm x 432 mm)

Print Paper Size

Standard: 3 15/16″ x 5 27/32″-12 3/16″ x 17″ (100 mm x 148 mm-310 mm x 432 mm)
Extend Paper Mode: 3 15/16″ x 5 27/32″-12 3/16″ x 21 27/32″ (100 mm x 148 mm-310 mm x 555 mm)

Paper Supply Capacity

1000 sheets (17 lb bond (64 gsm))

Print Paper Weight

Standard: 12 lb bond-110 lb index (46 gsm-210 gsm)
When using the Card Feed Kit (option): 27 lb bond-221 lb index (100 gsm-400 gsm)

Image Processing Mode

Line, Photo (Standard/Portrait/Group), Duo, Pencil


Scanning resolution: 300 dpi x 600 dpi
Printing image resolution: 600e dpi (600 dpi x 600 dpi: Perforation density on the master)

Master-making Time (for 100% reproduction ratio)

Approx. 17 seconds (for Letter/Landscape) 19 seconds (for Letter/Portrait)

Printing Area (max.)

11 7/16″ x 16 3/4″ (291 mm x 425 mm)

Print Reproduction Ratio

4 enlargements (inch): 121%, 129%, 154%, 200%/ (metric): 116%, 122%, 141%, 163%
4 reductions (inch): 78%, 65%, 61%, 50%/ (metric): 87%, 82%, 71%, 61%
Zoom: 50%-200% in 1% increments
Free: Vertical 50%-200%, Horizontal: 50%-200%
Margin+: 90%-99%

Print Speed

60 ppm-130 ppm (5 steps variable)

Print Position Adjustment

Vertical: ± 19/32″ (± 15 mm), Horizontal: ± 3/8″ (± 10 mm)

Ink Supply

Fully automatic (1,000 ml per cartridge)

Master Supply/Disposal

Fully automatic (215 sheets per roll)

Master Disposal Capacity

Approx. 100 sheets

User Interface

LCD Touch Panel with Progress Arrow indicators, Front Side Operation

Power Source

EZ591U: 100 V-120 V AC, 50 Hz-60 Hz/220 V-240 V AC, 50 Hz-60 Hz

Dimensions (W x D x H) without Stand

When in use: 55 23/32″ (W) x 25 25/32″ (D) x 26 3/16″ (H) (1415 mm (W) x 655 mm (D) x 665 mm (H))
When in storage: 30 23/32″ (W) x 25 25/32″ (D) x 26 3/16″ (H) (780 mm (W) x 655 mm (D) x 665 mm (H))

Weight without Stand

Approx. 227 lb (103 kg)