Jura Capressa -Tray will not go in, looks like something from above protruding down in the back so that the tray sticks out 1/2 inch (so machine does not work)

If the machine says TRAY MISSING it's the contacts at the back so clean as other people have stated, you can also use a cardboard nail file to clean the contacts at the back if there really dirty!.

If the machine keeps saying EMPTY GROUNDS even though you have, pull out the tray, look just inside the aparture where the tray goes top right at the front there is a small slot where if you look closely you can see a small white micro switch. This will be probably gunged up with coffee and the switch will be stuck up, get a can of WD40 and squirt a small amount up into the switch then poke the switch with a small screwdriver up and down until it moves smoothly.

Then replace all the bits, sit down, look smug and have a coffee cos you've fixed it!!

From your description I would say a broken O ring seal in the brewing chamber. You will need to remove the brewing unit and clean, replace seals and lubricate the sliding guides.

There are several thing which may cause unexpected jams in the duplex tray...,
1. first thing to do is eliminate all other possibilities by removing the netCard/Net connection Parralel connection so the machine is Stand Alone. make sure there is paper in the feed cassette 2 ( paper Tray)
press the TICK to enter menu
scroll down to diagnostic- press TICK
scroll down to paper path test - press Tick
scroll down to Source and select tray 2
scroll down to Duplex And select YES
( if the duplex option is not visible here then there is a connection/seating problem with the duplex tray)
Scroll down to copies and select 10
scroll up to print test page and press tick
the machine should now start duplexing 10 pages,
if you get the same error ( 1 page enters then jams)
it could be a dirty/snapped paper entry sensor,( looks like a little plastic match stick that protrudes into the feed path of the paper)
use a can of pressurised air to Blast any dust away from this arm and the surrounding area being careful to follow the Paper sensor Arm back to the sensor and blasting this as well-
Duplexer tray are cheaper than an engineer call out, if the fix above fails , your cheapest option may be a replacement Duplexer tray, available from most HP office equipment Stores as well as Belmonte Business Equipment.

For Jura F7 Series, "Tray Missing, can't put it back in". With a small flashlight, look in to the cavity which the tray and grounds container reside in. Along the right side above a slot to the end, you'll see a white micro switch. with a "Tooth Pick" simply press the switch inward (to the right) and hold till the machine cycles the Levcer / Flap up and out of the way.! Put your tray and grounds container back in and begin brewing!! -dh

Did u find a solution

I have a Jura Impressa 27. The tray, for some odd reason, was not going back in. I simply tried it without the top part - that receives the grounds - and was finally able to get it in. I pulled it back out and found some grounds that had been dumped. It seems something was stuck that wouldn't allow it back in with the top part. Then after I was able to put both pieces back in without a problem.

On the right side inside you can see a small slot. Try using a screwdiver or something to click this small microswitch, if the message disappears, then you need to check your tray and see if something is broken. You can also try to move a little on the tray when it`s in the machine. However if clicking on the microswitch doesn`t help, you need to have this switch replaced in a servicecenter

try this:clean with brus two metal contact on drip tray

Hi, if you havn't already solved this one, it has been caused by pulling the drip tray/ dump box out while the brew unit was still active. Switch off the machine and insert the drip tray without the dump box. Turn the machine back on and the brew unit should re align itself.

The connectors at the back have liquid on them use a lint free cloth to remove the liquid and the tray fault will go away. If you want to prevent this make sure that when you pour the water out the tray you pour it out the side not the back and this is how the liquid or debris gets stuck there