While Trello doesn’t have great built-in printing support, it can print individual cards or entire boards.
To print all cards in a board:
- Click … Show Menu if Menu (right pane) isn’t already visible.
- Click … More (right pane), then Print and Export.
- Click Print… (right pane).
To print individual cards:
- Click card, then Share (pop-up).
- Click Print… (pop-up).
For more information, see: https://help.trello.com/article/812-printing-in-trello.