You can export every report in Backbar to a spreadsheet. Including your inventory item information.
Once exported, the file will download to your computer as a spreadsheet to You can then print your inventory information from the spreadsheet file.

Most pages will print the loaded content as it shows with a simple print command through your browser. These are formatted outside of Backbar (by the browser) and as such we cannot guarantee data completeness, please review print outs using this method.