HP_printers

     +---------------------------+---------------+
     |                           |   LaserJet    |
     |                           |  III  |       |
     |                           |  4M   |       |
     |                           |  4ML  |  all  |
     | Sides Values              |  4MV  |others |
     +---------------------------+---------------+
     | 1, ONE, ONE_SIDED_SIMPLEX |   X   |   X   |
     +---------------------------+---------------+
     | 2, TWO, TWO_SIDED_DUPLEX  |       |   X*  |
     +---------------------------+---------------+
     | TUMBLE, TWO_SIDED_TUMBLE  |       |   X*  |
     +---------------------------+---------------+
     | ONE_SIDED_DUPLEX          |   X   |   X   |
     +---------------------------+---------------+
     | ONE_SIDED_TUMBLE          |       |       |
     +---------------------------+---------------+
     | TWO_SIDED_SIMPLEX         |       |   X*  |
     +---------------------------+---------------+

      * Only if printer has the duplex option installed