Jasper Report- JRException: Image read failed

 This Exception comes generally when you try to export the report on Jasper Server in PDF Format, or from iReport, then due to the error in some of the image or all the images, which is producing the error.

So to overcome this issue, you could set following properties of the image:

1. Firstly you could simply setting the Cache Property to true
2. If that does not resolves the issue then you can set the property Error type to Blank

Hope that this helps.

Cheers!!