How to manually install a old hp tracer on macos 15?

Hi there,

I have an old hp designjet T770PS at one customer
we recently changed 27" imacs with new macbook pro 14 M3
and the hp driver stops in 2012 …
on some macs I used the migration assistant and the tracer works on these macs
but on other new macs, I can’t use the hp driver it does not start at all
if I use the generic postcript driver it prints all in A4 even if I add a personalized A0 paper
how to copy the good files from one working macbook to another ?
I tried many things but the best I have is a “cups filter error”

anyone knows how to do this ?
thanks.