ink

Risograph inks are soy-based and do not conform exactly to any color standards. The listings below are approximates for reference only. Additionally, Riso inks are also slightly transparent and allow for variations in overprint and based on the color of paper they are printed on. 

The tab taped in place
Comparison between ink tubes E on the left, GR on the right
E series inks also come with this nozzle in place, pull it out with pliers

https://www.thingiverse.com/thing:3407889

Suggested printing settings, .2 layer height, no raft, no supports, infill doesn't really matter, but I leave mine at ~25%.

This tab allows E-Series ink to be used in GR machines, just remove the RFID sticker on the ink tube, and double sided tape the tab into the same "quadrant" where the sticker was.  This allows the machine to recognize the ink tube as a color ink tube.

Tags: 

This tutorial applies to MZ/EZ/RZ drums. The purpose of this tutorial is to clean and prep a drum to change the color. This tutorial simply shows taking apart and cleaning the drum for new ink. Cleaning the drum instead of trying to flush out the old color with new ink will save you a lot of ink and paper.

Please note: I am not a certified Riso tech. This method has worked for me through trial and error and reading through the technical manuals. Find a clean work space and lay down some kraft/butcher paper because it will be messy!

Ink color code chart from the Technical Manual

Here's a list of color codes for the RP series (should work on all models, have been tested on a RP3100UI and RP3700).

Unlike with newer machines which use chips to show the appropriate color on the Riso, the ink must be manually dialed in on the RPs through a Test Mode setting. It is however not necessary to change the color code on the drum after swapping ink colors but if you want the Riso to show the corresponding drum color on the display, you can use the codes to update the drum settings after changing inks. 

A nozzle-to-nozzle ink transfer adapter is an easy and painless method of transfering inks from tube to tube. Transfering ink in this manner is a much cleaner process then filling tubes through the back and helps prevent air bubbles from forming during the transfer process. 

Tags: