google calendar print option gives me a blank page

use the print option inside Google Calendar itself (the gear icon > Print), not Ctrl+P on the page. Ctrl+P just prints the web page and often comes out blank or cut off. the built-in one has its own preview and lets you pick the date range, font size and orientation.

Does the preview come up blank, or the actual printout? If it's the preview, try saving it as a PDF from the print dialog and printing that PDF instead. If the PDF is blank too, try another browser, which tells you quickly whether an extension is the culprit.