i have a 8530 and recently i am getting messages, such as "the item you selected cannot be displayed. Do you wish to save the item?"" and when i try and save it i get this message unsupported media type: application/octet-stream" and I am getting this error HTTP Error: 413: Request entity too large.
There was a similar post yesterday in the forums with a user having similar problems. I believe it is a problem with the device software OS 184.108.40.2063. The fix for now would be to downgrade back to OS 220.127.116.116 and the problem should be cured. Hope this helps,