Our Riso prints A3. If you need additional cutting, trimming, binding, folding we can offer some services inhouse for a small extra fee. Let us know what you need and we will let you know what we can offer.

PLEASE READ THE FOLLOWING PRINT GUIDE BEFORE SUBMITTING YOUR DESIGN FOR PRINT.

File Setup

Please provide artwork in the following specs: 


1. Each colour layer separated and saved as a separate file
2. Resolution = 300-600dpi | Size = A3
3. Please leave a 10mm clear margin on all prints
4. Export as Greyscale / B&W
5. Flattened PDF (no layers or transparencies)

*Please include a mockup of what your artwork should look like when all layers are combined! We won't print until we receive this.

Do you want us to set up your files for you? We charge 250DKK per hour for file setup and will provide you with a digital proof of your artwork before starting the run.

PAPER SIZE: A3 & FULL BLEED

The Riso prints A3 (297 x 420 mm). Please leave a 10mm clear border on all prints. Anything within this border might not get printed.

To avoid your design or content to be cut off during the trimming of your final print account for some misalignment. Do not put important information close to the 10mm margin's edge (leave approx. 0,5 cm).
 
Riso is not able to print full bleed A3. If you would like to print full bleed extend your design past the cut line (10mm white border) to allow for some of your illustration to be cut off. 

If you are making a zine or book please consider that we will need some extra margin as well for the binding.

Riso prints A3, but we can trim to other sizes as well. (Also sizes that are not A3-A6, but try and fit your sizes unto A3 to avoid paper waste).

INK COLOURS

The Riso Inks are non-toxic and soy based. This means they require a bit of time to dry. The ink actually sits on top of the paper, which is also why there’s a chance of smudging if you handle the print too much (like newspaper). This won’t be an issue if you handle your prints with a bit of care. You can use a rubber to remove tire marks or unwanted smudges. 


Our current ink colours are:

Red (closest pantone colour is Warm Red U)
Blue (closest pantone colour is 3005 U)
Purple (closest pantone colour is 2685 U)
Black (closest pantone colour is Black U)
Yellow (closest pantone colour is Yellow U)
Fluorescent Pink (closest pantone colour is 806 U)
Fluorescent Yellow (closest pantone colour is 803 U)

The ink is translucent meaning that colours can be overlayed to create unique tones and colours!

*The inks cannot be rendered 100% correctly digitally (especially our awesome fluorescent colours!) so come by our studio and check out the spot colours for yourself or we can send you a colour chart by snail mail for 25DKK (it covers our materials and postage).

Hot tip: Color overlay can be simulated by using Multiply layer modes in Photoshop, Illustrator etc.

The Riso prints on a gradient of 10 to 100% coverage and all files are sent to the printer in grayscale. Playing with different opacities works great for Riso. We don’t recommend 100% coverage on large areas as it will be difficult for the paper to absorb = long drying time and it might get stuck on the drum when printing.

Because the Riso is a duplicator it will always come with a chance of irregularity and imperfection. This is a part of the appeal to us! Every print is unique. Riso in this way almost behaves human, these quirks are what makes every print interesting. This also means that smudging, uneven coverage when printing large areas of solid ink, (mis)registration meaning irregular overlap of colors, and tire marks are not issues, but something to keep in mind as part of the Riso’s charm. The idea of riso printing is to create a finished product that seems hand-printed - not mass produced!

If you want to avoid white lines in your design from misregistration you can trap your layers in Illustrator.

PHOTOGRAPHS & TEXT

The Riso can print photographs beautifully! The riso automatically creates a halftone bitmap pattern (Don’t add the effect in Photoshop). In our humble opinion Riso works best with mid/high contrast photos. Try opening up the mid-tones.
Riso ink do not come in magenta and cyan, but by using Blue, Fluorescent Pink, Yellow, and Black, you can approximate CMYK for photographs or other full-color images. You can also substitute these inks and print your photograph in the spot colours you want.

When working with a CMYK file in Photoshop: open the Channels Menu and select Split Channels. This creates new grayscale files, one for each color channel from your template. Another option, if you have prepared your color separations in layers instead of channels, you can use the File > Export > Layers to Files function to split them into individual files. Then open each file, convert it to grayscale! :)

For text try to keep text and type above 6pt if you want solid and clear lines. 

For text under 12pt set it to registration black (100/100/100/100).  Over 12pt. use 100% Black (0/0/0/100).

Surfaces should overlap under lines (also called trapping).

Lines should not go below 0,25pt.

*Do not make text in Photoshop (it will print pixelated). Create it instead in Illustrator or InDesign*

HOUSE PAPER

We stock uncoated paper from weights around 90 g/m2 to approx. 240 g/m2. Ask us what we currently have in stock, or might be able to order from one of our supplier. We currently use Metapaper and their paper Rough, Extra Rough and Extra Rough Recycling. They come in the tones cold white, white, and warm white.

We can also order papers in different colours in for you. It might sometimes be a better solution than printing large heavy ink background colours.

ZINES & BOOKS

If you're planning on making a zine or book please include a pdf mockup in reading order (or an illustration of the pages as they will be printed).

DISCLAIMER

The Risograph is not perfect like laser - or inkjet printers. The inconsistent results are part of its charm and hand printed quality. Your prints will have print marks, especially if you have big areas with heavy ink coverage, use more than one colour or print double sided. Slight misregistration is part of what makes every print unique and why Riso is so loved by the art community.

The print will not look like it does on your computer screen. The Riso’s unique spot colours are not identical with the closests pantone colours. On top of this the Riso inks are translucent. This means that the colour of the paper you print on also affects the tone of the colours on your final print as well as overlaying inks will create new tones or colours.

FOLLOW US

CVR

41740086

CONTACT

info@obrapress.com

ADDRESS

Birkedommervej 35
2400 Copenhagen
Denmark