Foot for Papertray of an HP Laserjet Pro M15w

I love this little laserprinter. It works fine for man years now. But recently, paper fails to feed into the printer.
The paper tray normally folds flat on the table, and paper is pulled in horizontally.
I found, that the printer grabs paper perfectly fine, when the try is oriented a bit upwards.
Hence here are some feet that support the tray at ca 30°

Printed from TPU, as they snap onto the edge of the papertray.