HP LaserJet 9000 Printer series - Manual (Page 232)

D Printer commands 232
Common PCL 5e printer commands
Common PCL 5e printer commands
Function Command Options (#)
Job control commands
Reset ?E n/a
Number of copies Ec&l#X 1 to 32,000
2-sided/1-sided printing Ec&l#S 0 = simplex (1-sided) printing
1 = duplex (2-sided) with long-edge binding
2 = duplex (2-sided) with shor t-edge binding