M479fdw Tray 1 will not stay closed - Little t or x plastic piece found in the paper try below

[CMRowell]

M479fdw Tray 1 will not stay closed - Little t or x plastic piece found in the paper try below.
My top paper tray stays secured to the front toner cartridge panel right up until it latches. THen the door falls open again. I know the cause it this little plastic part has fallen from it's home Can't figure out where the heck it should be. Thank you for the help everyone.

[PSSG]

In each corner of the front door are plastic locking mechanisms that are spring actuated.  From what I can see, your part came from one of these areas.  If the part is loose, the spring may have fallen out too.   it usually means something has broken.  Part is not available.  You would have to replace the front door assembly,  Front door assembly RM2-1824-000CN .  

[Echo_Lake]

@CMRowell

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help,

I understand that the plastic piece has fallen out from the printer and the paper tray is not working correctly. As we have limited support boundaries in the support community as of now.
 

I would request you to contact our Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link:  www.hp.com/contacthp/

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.