How do I get clean HDMI output for XA10?

[Prosper12]

Good afternoon I would like to know how to get a clean hdmi for cannon XA10 for a live stream on my camera settings I went to the output onscreen displays and switched it off but the onscreen markes are still there may I please some assistance on moving them thank you.

[rs-eos]

Maybe it can't? Regarding using an external device, it seems that was only meant for copying already-recorded footage.  e.g. see page 137 of the User Manual for the Copying Recordings to an External Video Recorder topic.  I don't see any mention of using an external recorder to do the actual recording (at which point, clean HDMI would be a necessity).