Dell All In One Printer 810 help

[mandy8371]

My 810 has a part that fell out of the case where the paper would go in......it has something to do with the paper going in .......I have no idea what this part is or where it goes...besides my fingers cant fit in there too good anyways!...does anyone know of a site online that shows the inside of the printer and how to open it up? or even pics of parts for the printer?
thanks for your help...............Mandy:confused:

[mandy8371]

okay..........now.... this guy, Moe, figured out that this part is somewhat of a paper feeder part and there are 3 in a row under where the cartridge area is...and this one fell out....now......how do I get the part back into its place?.......space is too small to work in..........................Mandy