Step-by-step guide

Open Google Chrome (the plugin is Chrome specific but only needed when manually adding Hope printers)
It should prompt you to Install Chrome Extension
It opens a new tab on the Printer Logic site
Click the orange Install Extension button
It then redirects to the chrome web store
Click the blue Add to Chrome button
A dialog opens
Click the Add extension button

Go back to the https://lcoh.printercloud.com/ page
Reload the page
It should prompt you to Install Printer Installer Client
Click the Install button
It will download the client installer
Run the client installer
Go back to https://lcoh.printercloud.com/ in Chrome
When it prompts for the Authorization Code: cghjx5
Wait for the page to load the list of printers and copiers

In your mac toolbar by the clock in the top right corner
Click the icon of the printer with the little plus sign
Select Refresh Configurations
That will install all the printers for the campus you are at