• Which Products are you interested in ?

    CST offers a wide range of EM simulation software to address design challenges across the electromagnetic spectrum, from static and low frequency to microwave and RF, for a range of applications, including EDA & electronics, EMC & EMI and charged particle dynamics.

  • Antenna Magus
  • IdEM
  • FEST3D
  • Optenni Lab
  • Looking for a Training, Workshop or eSeminar ?

    CST STUDIO SUITE® is being demonstrated at trade shows and workshops all over the world. Take a look at the list of conferences and exhibitions CST will be attending and get further information regarding CST workshops, eSeminars and training days.

  • TrainingsRegular training courses are held in CST's offices in Asia, Europe, and North America. Please check our trainings section for detail of trainings in all over the globe. Advance registration is normally required.

  • WorkshopsCST hosts workshops in multiple languages and in countries around the world. Workshops provide an opportunity to learn about specific applications and refresh your skills with experienced CST support staff. Make sure you visit our workshop section.

  • eSeminarsThroughout the year, CST simulation experts present eSeminars on the applications, features and usage of our software. You can also view past eSeminars by searching our archive and filtering for the markets or industries that interest you most.

  • Check our latest Events
  • Why create a MyCST Account ?

    A MyCST account may facilitate your access to many of the offerings on the CST website, for example the registration for eSeminars and the watching of eSeminars recordings, setting email preferences, and there is more functionality to come. It is required to participate in workshops and trainings.

  • Personal PreferencesAllows you to update your email preferences and areas of interest. It helps us to personalize your experience.

  • EventsSearch for events by location, industry and application. Once you are registered, you will be able to manage your registrations and check important details about your events. This section also provides you with a repository for Workshop & Training material.

  • LibraryYou can collect articles you find on the CST website to reference or read later by clicking on the “Add this article” button at the bottom of the article page.

  • Create Your Own Account
  • Need technical Support ?

    Customers can customize their accounts once they have completed the account creation process. This platform acts as vivid interface between CST and our customers.

    We therefore offer access to the latest Service Packs (including an automatic notification that a new Service Pack is available), a steadily growing database of Frequently Asked Questions (FAQs), Application Notes and Training Videos, as well as an individual FTP section for easy exchange of large files with our support team.

  • Do I need an Account?To access the Support Site a valid maintenance contract and a one-time registration is required.

    Please note that your Support login does not work for the MyCST account.

  • Get Support
  • How to request a Trial License ?

    Get your license in only three steps:

    1. Fill in the required fields in the contact form on the right and click "Send Us Your Request".

    2. Lean back and wait until one of our CST Experts contacts you.

    3. Enjoy a our trial license.

  • Student Edition

    Student Edition The CST STUDIO SUITE® Student Edition has been developed with the aim of introducing you to the world of electromagnetic simulation, making Maxwell’s equations easier to understand than ever. With this edition you have, bar some restrictions, access to our powerful visualization engine and some of the most advanced solvers of CST STUDIO SUITE.

    Student Edition

CST – Computer Simulation Technology

Fuji Xerox Uses CST Studio Suite for EMC-Compliant Printer Design


Founded in 1962, Fuji Xerox Co., Ltd. is a leading company in the document services & communications field. Underlying their solutions and services are their world-class office multifunction devices, printers and production printers that they develop and manufacture for worldwide distribution. Modern multifunction printers include many electronic components (Figure 1) – often modular to ensure commonality – and these can interfere with each other causing electromagnetic compatibility (EMC) issues. In addition, electrostatic discharge (ESD) can affect the performance of individual components. Where EMC issues arise during testing, it is not always clear what the cause is. In order to better understand the mechanisms behind these and to find effective mitigation techniques, Fuji Xerox decided to use EM simulation with CST Studio Suite®....

Figure 1: A Fuji Xerox multifunction printer.


When prototyping the printer, one area where Fuji Xerox saw EMC issues was the user interface (UI) unit. Testing revealed that changing the number of contacts between the unit and the frame improved EMC performance, but didn’t identify the coupling paths that caused issues. To simulate this effectively, Fuji Xerox needed to be able to simulate both the UI PCB and the frame of the printer. The variation in scale between the two meant that this would be a challenging task (Figure 2).

Figure 2: Variations of scale in a printer, from the metal frame to the individual PCB traces.

CST Studio Suite allowed the PCB to be imported as a 3D model and integrated into the metal frame imported from the CAD software. Thanks to the high-performance computing (HPC) capabilities of CST Studio Suite, the entire model could be simulated within a workday on the TSUBAME cluster at Tokyo Institute of Technology, with MPI cluster computing and GPU hardware acceleration. This showed the current flows within the device and explained why changing the contacts improved performance. The simulated EMI spectrum was compared to measurements and found to be in good agreement (Figure 3). Engineers could then use this information to improve the design of this device, by using a new countermeasure with a reduced EMI spectrum, and avoid similar issues with future devices.

Figure 3: EMI spectrum at 3 m, with the old and new contact designs, comparing simulation and measurements.

Simulation was also used to test the ESD hardiness of the LED print head. The ESD test set-up was recreated in CST Studio Suite, allowing different PCB designs to be analyzed. Simulation results agreed closely with measurements and allowed engineers to revise the PCB to reduce ESD susceptibility.


By allowing some measurements to be replaced by simulation, CST Studio Suite reduced the number of physical prototypes needed, shortening the design process. With simulation, Fuji Xerox engineers were able to predict EMC problems before constructing the prototype and identify the mechanism behind any that did arise, making them easier to mitigate.


With a high usability and powerful features like EDA import and GPU acceleration, CST STUDIO SUITE accelerates our development cycles by reducing the number of design iterations.


  • Mr. Makoto Ohkado
  • Device System Platform Development, Device Development Group, Fuji Xerox Co., Ltd.

Rate this Article

4.5 of 5 Stars
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Fuji Xerox

Since its establishment in 1962, Fuji Xerox has followed its basic philosophy of helping customers and society foster mutual understanding through better communications. The company revolutionized office work with Xerography; the technology that allows duplicating information on paper. Fuji Xerox has not only established an innovative business model focusing on a rental service – providing utility – rather than providing devices, but also offered a wide range of products and services to support customers in communications and creating values.

contact support

Your session has expired. Redirecting you to the login page...

We use cookie to operate this website, improve its usability, personalize your experience, and track visits. By continuing to use this site, you are consenting to use of cookies. You have the possibility to manage the parameters and choose whether to accept certain cookies while on the site. For more information, please read our updated privacy policy

Cookie Management

When you browse our website, cookies are enabled by default and data may be read or stored locally on your device. You can set your preferences below:

Functional cookies

These cookies enable additional functionality like saving preferences, allowing social interactions and analyzing usage for site optimization.

Advertising cookies

These cookies enable us and third parties to serve ads that are relevant to your interests.