The Hold Print Job button controls whether a job is
  available for printing immediately. When the Hold Print
  Job button is on (signified by a highlighted button),
  the job is held until it is manually released using
  queue management commands.

  To use the Hold Print Job option:

  1. Move the pointer to the Hold Print Job button.

  2. Click MB1 on the button. When turned on, the button
     is highlighted.

  3. Click on the OK button.

  Off is the default setting.