Wondering about the downvote.
Is there a print function in PGC?
If not - why is it negative to think about...
Nevertheless, if PGC doesn't take actions, you can try to evaluate the reason for nonworking Geoprinter. If it is a server issue on working place, an import function for GPX can combine the power of PGC (source for exported lists in GPX Format) with the full functionality of Geoprinter (working "offline" with importeted GPXies). The Developer of Geoprinter need to add the import function. This will give also stability in use die the additional data input Interface.
You can also use offline / sandboxed virtual machine when asking your admins. Print can be activated / allowed or you can go the additional way with additional PDF/XPS step.
Also a portable Chrome Application Version may be a solution.