PDR1071S
Invalid <DUPLEX> tag start parameter startYN. Must be FRONT, BACK, or ALWAYS.
What happened: You specified an Input or Insertpage group <DUPLEX> tag startYN value other than FRONT, BACK, or ALWAYS. The invalid startYN value is given.
What to do: Specify FRONT to print the input document only if it starts on the front of a sheet of paper; specify BACK to print the input document only if starts on the back of a sheet of paper; or specify ALWAYS to print the input document whether it starts on the front or back of a sheet of paper.