Problem plotting in Archicad13: black lines all print gray

[Anonymous]

I am having a problem plotting using Archicad13, Windows 7 Home Premium 64-bit, HP Designjet 430 (black only) with 64-bit Vista driver.
Entire drawing: lines and text prints grey not black, whether I have the plotter set for black and white or color. Different line weights print correctly, but everything prints a uniform pale gray. When I print PDF files, the drawing prints sharp black lines and text with no problem. Can anyone help with this problem?

[Anonymous]

Is your plotter set to draft quality?

[Anonymous]

Lance,

I'm guessing you are printing from >File >Print, if so, then:

When printing directly from the screen, a window called "Print 2D Document" pops up. Click on the "Black and White" check box.

Snap