manual feed / bypass tray (hand einzug) cannot be chosen in printer dialog on ubuntu 16 using a sharp mx2614 printer

OS:
Ubunu 16.04

Nework printer:
Sharp mx2614

Issue:
When trying to print a document using LibreOffice the printer dialog appears.
Sadly in the printer dialog the customer cannot select “bypass tray”.
He can select all other trays 1 to 4 but not the manual feed tray.

If I try and print using a different software like gedit or OpenOffice it works without any problems.

Has anyone an idea why LibreOffice is the only software having issues?

Im searching for hours now, and cannot afford to waste more time on this, the price will just be to high for the customer. And I would like to keep LibreOffice instead of switching to an alternative.

Help would be much appreciated.

Cheers

“Im searching for hours now, and cannot afford to waste more time on this, the price will just be to high for the customer. And I would like to keep LibreOffice instead of switching to an alternative.”

Do I understand you correctly, that your words mean “either you solve my issue for me right now, or I go away”?