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Your Digital Imaging & Print Systems Integrator

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On-demand Print Finishing Solutions

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MZ 770

One color or two - RISO's MZ 7 series offers you the choice at a single pass
Riso MZ 770 single color printing

High quality single color printing

For speed and ease, you can run the MZ 7 series as a single-color printer to output simple documents that don't need the extra impact of a second color.

Superb 2-color printing

When you want to produce documents with the power and impact that two colors bring, the MZ 7 series is the easy efficient answer offering two-color printing at a single pass.

MZ770 2-color printing
600 dpi scanning

The scanner boasts 600 dpi resolution to ensure that even the finest details are clearly picked up and transmitted to the master-making section.

600dpi scanner
Super-fine printing
600 dpi perforation printing

600 dpi perforation density on the master and unique RISO image management technology result in beautiful output quality with smoother lines, finer gradations for photos and even tiny typefaces clearly legible.

Ultra high-speed output

A maximum print speed of 150 ppm gets you to the end of even the longest print job in an astonishingly short time, taking less than seven minutes to print 1,000 pages.

High speed printing
Lightweight, front loading print drums
Front loading print drum

Thanks to front loading design and print drums lighter than ever before, swapping a print drum for one of a different color is a simple operation everybody can quickly and easily carry out.

Easy ink setting
Ink setting

Changing the ink bottle is also quick and easy with front panel access: simply insert the ink bottle and twist into place.

Slide-out master unit
Slide-out master unit

The side-mounted master unit slides out like a drawer for fast, simple replacement of the master roll. Just remove the old one and drop a fresh one into place, and you're ready to go.

MZ 770 Operation Panel
MZ 770 Operation Panel
Bright, easy-view screen with convenient touchpanel operation

The large, bright screen was developed to provide clear, at-a-glance viewing of functions, and even a preview of how your document will look after printing. Menus are logically grouped: simply step through the various function menus displayed on the touchpanel until you reach the one you want. Better still, you can even place your most-frequently used functions on the top screen and customize the panel layout.


Easy 2 Colors

"Easy 2-color" for simplified master-making

The MZ970 and MZ770 feature "easy 2-color"-a process that not only makes it easy to create 2-color masters, you even get a choice of how to do it so you can select the method that's easiest for you or most suitable for any particular print job.

Red and black original

A red and black original gives simplest master-making process. Just set your original and scan - the MZ printers automatically does the color separation for you.

Handwritten separation

With a single-color original, you can handwrite the data you want printed in the second color. Again, carry out the scanning process and the colors are separated automatically.

Area separation

With a single color original, you can circle the areas you wish printed in the second color. When you scan the original, the colors are automatically separated.

Separation sheet

If you don't wish to mark your original as required for area separation, simply circle the second color area on a separate sheet of paper and scan twice for color separation.

Note : Automatic separation depends to some extent on the type of original used. For best results, please contact your dealer for details on useable colors for originals and pens.

Product Brochure



Riso Editor

With the RISO Editor, you can quickly and directly specify which areas should be in which of the two colors, and even move individual blocks of text, photos or illustrations for precise placement to enhance the look of your finished document.

Preview mode

With preview, you can view your document on the touchpanel exactly as it will appear when printed, giving you the opportunity for a final check to ensure it is precisely how you want it.

Line/photo/duo/pencil modes

Select from line, photo, duo or pencil modes. Line mode is best for text-only documents, photo mode is better for photos or illustrations, duo mode gives the best results for documents that are a mix of text and photos, while pencil mode is optimized for illustrations that are drawn in pencil.

A choice of 3 photo modes

Standard mode is the basic setting designed to give excellent results with the majority of photographs.

Portrait mode

Portrait mode is optimized to give clear gradations of skin tones, resulting in superbly lifelike output.

Group photo mode

This mode uses a special algorithm to clearly show faces in group photos, so subjects can easily pick themselves out.

Pencil mode

Often, illustrations drawn in pencil fail to scan cleanly. Pencil mode is optimized to clearly scan and print such illustrations to assure you of superb results.


If you wish to print a letterhead on a document, simply recall the data and it is then automatically overlaid on the master at the same time as the scanned document.


Store your most frequently-used document hold item on a dedicated page of the touchscreen. Then a single touch immediately accesses and prints the item in the second color.
Note: Optional Document Storage Card DM-128CF is required for Document storage, Overlay, and Stamp function.

Data from a PC

If you are creating your color original on a PC, the included printer driver software automatically separates the colors into two when you send the data to the printer. Dual-tone color printing is also available.

Remote monitoring

You can conveniently monitor a networked printer's condition from your PC. Data displayed includes loaded ink colors,remaining master supply, paper loaded, and much more.
Note: For networking, the optional RISORINC NET network card is required.

Riso iQualitySystem

RISO i Quality system TM offers a large number of quality and convenience benefits. Among them are:

  • sAutomatic assurance of optimum print quality.
  • Prevention of operator error.
  • Warning of shortages in remaining ink/master volume.
  • Minimized paper waste.

The RISO i Quality mark indicates a RISO product compatible with the RISO i Quality System



Master-making/printing methods

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


Scanning resolution : 600dpi x 600dpi

Print image resolution :

300dpi x 600dpi

(600dpi x 600dpi : Perforation density on the master)

Original Type

Book, sheet

Original Size (max./min.)

When using the Stage Glass : 50mm x 90mm - 297mm x 420mm

When using the ADF unit (option) : 90mm x 140mm - 297mm x 420mm

Original Paper Weight

When using the Stage Glass : 10kg or less

When using the ADF unit (option) : 50g/m 2 - 128g/m 2

Print Paper Size (max./min.)

When simultaneously 2-Color printing : 182mm x 257mm - 297mm x 432mm

When 1-Color printing (using Cylinder (Drum) 1) : 100mm x 148mm - 297mm x 432mm

When 1-Color printing (using Cylinder (Drum) 2) : 182mm x 257mm - 297mm x 432mm

Paper Supply Capacity

1000 sheets (64g/m 2 )

Print Paper Weight

46g/m 2 - 210g/m 2

Image Processing Mode

Line, Photo, Duo, Pencil

Master making Time
(for A4/portrait/100% reproduction ratio)

Approx. 57 seconds (for dual-color print)

Approx. 24 seconds (for single-color print (Cylinder (Drum) 1))

Approx. 34 seconds (for single-color print (Cylinder (Drum) 2))

Printing Area (max.)

291mm x 413mm

Print Reproduction Ratio

Zoom : 50 - 200%
Standard reproduction ratio (enlargement) : 163%, 141%, 122%, 116%
Standard reproduction ratio (reduction) : 87%, 82%, 71%, 61%
Margin+ : 90-99%

Print Speed

Approx. 60 - 150 pages per minute

Print Position Adjustment

Vertical : ±15mm "Horizontal" : ±10mm

Ink Supply

Fully automatic (1000 ml per cartridge)

Master Supply/Disposal

Fully automatic (approx. 215 sheets per roll)

Master Disposal Capacity

80 sheets

User Interface

LCD touch sensitive panel with Progress Arrow indicators, front-side operation

Power Source

100-120V/220V-240V AC, 50/60Hz <7.3/3.0A>

Dimensions without stand

When in use : 1605mm(W) x 725mm(D) x 730mm(H)

When in storage : 1010mm(W) x 725mm(D) x 730mm(H)

Weight without stand

Approx. 168kg

* Specifications are subject to change without notice. Details may vary depending on the region.