The International Printing Machinery and Allied Trades Exhibition (IPEX) is the largest printing and graphic artstrade show in the English-speaking world. The trade show is held every four years, two years after/before the Drupa trade show. The next IPEX will take place in the London from 19 March to 24 March 2018.
In February 2015, the organisers of the Drupa exhibition in Germany announced they would change to a shorter 3-year show cycle following the 2016 event, which means that Ipex 2018 will be only one year in advance of Drupa 2019. If Ipex remains a quadrennial event, both Drupa and Ipex will potentially clash in 2022.