Your code will create a file called cprinter.

clear
cPrinter = getprinter()
set printer to name (cPrinter)
set printer on
?
? "Hello world"
?
set printer off
set printer to

>Hi all,
>This does not print anything. It only ejects a blank page. Am I missing something obvious here?
>

>clear
>cPrinter = getprinter()
>set printer on
>set printer to cPrinter
>?
>? "Hello world"
>?
>set printer off
>set printer to
>