I don't know why but I can't make my report printing on a specific Printer

that's what I do :

first I select a printer say :

lcWheretoPrint = getprinter()

than, but I'm sure I did thousands of time before... I try to say this
xxxxx system that I want this printer to be the default one

set printer to name (lcWhereToPrint)

report form MyReport1 to printer noconsole
report form MyReport2 to printer noconsole
........
report form MyReportn to printer noconsole

it doesn't work !!!!

I also tried with :
report form MyReport1 to printer name (lcWheretoPrint)

NOTHING

I'm a bit confuse now... help !!!