Posted: 14 Oct 2014 15:26 by issuepressLast edit: 16 Jul 2018 15:07 by issuepress
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.
Posted: 12 Sep 2018 13:11 by unworkLast edit: 14 Sep 2018 16:22 by unwork
There are no Riso-supported Mac OS X drivers for the RP Series, yet it is possible to print directly to an RP machine from Mac OS X, without complex tinkering –if any at all– or extra files. All one needs to do is install Riso drivers from a different series that do have OS X support, then connect your RP to your Mac via Ethernet or USB and create/add your printer in the exact same way you'd add any supported printer under Mac OS X.
Posted: 20 Jan 2017 21:48 by unworkLast edit: 30 Mar 2020 10:04 by risofort
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.
Posted: 26 Apr 2015 18:48 by issuepressLast edit: 01 May 2015 14:19 by issuepress
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.
Posted: 17 Oct 2014 14:10 by paperpusherLast edit: 17 Dec 2014 20:02 by issuepress
To understand the role that paper plays in Risograph printing begins with a brief knowledge of ink behaviour. Soy-Based Risograph Ink dries through a combination process of absorption and evaporation, so it is ideal to find paper stocks with qualities that suit this process. Much like soy-based newspaper printing ink, Riso Inks may smudge after the prints have dried (technically, the ink never really sets). This may be of concern for some projects, especially those with heavy ink coverage, or intended for handling.