Check to see if updates and/or upgrades have been done to the machine.
If upgrades ave been purchased be sure that you receive the information or the usb. They will be specific to that machine and should follow the machine.
Updates are free from the vendor site. Upgrades are purchased through the dealer.
Here is your manual too.
https://www.brother-usa.com/support/xj1
Check pages 15-17 to make sure you receive all the original accessorizes, hoops, and machine feet.
Check the support page as there is a software update. They are easy to do.
https://www.brother-usa.com/support/xj1
You will love the dual feed foot. There are additional feet than can be attached to it such as SID, 1/4 inch foot, etc.
Good luck! Give a shout if you need help!