By mandate of the California Secretary of State, you have the legal right to request a paper ballot if you are concerned about the reliability of electronic voting machines. They must provide these ballots.
However, pollworkers in Santa Clara County -- that's San Jose, and the place where a goodly number of you out there in LJ land live -- are being unstructed specifically not to mention this to voters, and to provide paper ballots only upon specific request.
The rights you save could be your own!