When printing from ThinLinc with thinlocal it is not possible to print all the way to the edge of the paper because the printout will be cropped with ~4mm margin.
Tested printing directly to 'Office' from Fedora 30 (outside of ThinLinc) and the resulting print had a margin of ~4mm on all sides except on the right side which had 2mm margin. Page and print scaling was set to 'none'. This was used as reference sheet.
ThinLinc using Fedora 30 client and Ubuntu 18 server:
* When printing to 'thinlocal' the printed paper had ~4mm margin on each side, inclusive the right side.
* When printing to 'Office' the printed paper had 4mm from all sides except the right one which was 2mm. This result was the same as the reference sheet.
This shows that thinlocal cannot print as far to the edge ash it should be able to. There is a given margin in ImageableArea in Office.ppd which is 12pt =~ 4mm which seems to line up with our margins in thinlocal. This ImageableArea should not be interpreted as a hard cut-off but instead as a guideline. This configuration is individual to each printer.
It seems that when using thinlocal, in some step on the way from a printing request to an actual print, the job gets cropped to 4mm margins on the side. In our case this might not be a big issue but if the printer margins would be set to e.g. 20mm it would probably be an issue.