. . .
Though it *can* print, with limited functionality, to Laser Jet printers, DOSPRINTER can't make use HP LJ drivers and has a number of other limitations. If you want to use HP LJ drivers and PCL6, try the following:
1) download pcl6.exe from Edward Mendelson's WP reference pages, put it in the vDos directory, load a xywrite HPLJ driver and print. A pdf of your printer output will print to the screen, which can in turn be sent to any Windows printer, whether or not it's a HP LJ, and/or saved to disk; or
2) same as 1) above, but follow Edward Mendelson's additional instructions, available on the vDos discussion site, for printing directly to the printer, bypassing the need to generate a PDF on screen.
In both cases, the default font with will be HP's "Dark Courier". You can also use any of the internal scalable PCL6 fonts, with "PT" codes or embedded "PI" codes.