[first 3 lines as per your code]
my $sysKey = $Registry->{"LMachine/SYSTEM/CurrentControlSet/Control/Print/Printers/"} ;
my @Print_Printer = grep( m#^/#, keys %$sysKey);
[last 3 lines as per your code]
####
CAPTURE FAX BVRP/, Capture fax BVRP Extended/, Speedway!fax/, Brother HL-1250 series/, /, /StartOnBoot,/PrintersMask/
####
/StartOnBoot
/PrintersMask