Description: Returns or sets the print density setting. Print density is the instantaneous amount of marking agent applied to the paper while printing. A value of zero has the lowest print density, yielding a lighter page. A value of 10 has the highest print density, yielding a darker page. Each POS should document what values in the 0 to 10 range are supported. Additional information: When this value is written, the page pipeline will be flushed (all pages being printed are completed, no new ones are started), the new density setting is set and printing resumes. The acutal change in print density may be gradual over several pages. The supported values are 1 through 5. Setting to an unsupported value causes the printer to substitue in a a snap value and to return status. The snap values are as follows: <1 snaps to 1 >5 snaps to 5.