plotting to a hp color laserjet cp5220

i am trying to print 11x17 and it prints half page.

; MicroStation starts counting pens at 1, so even though the HP 650c has
; pens 0 through 255, pen 0 is not used by MicroStation.
num_pens = 1 ; Defines pens used - max value is 255
change_pen = weight ; options are color, weight, level or both
model = mdl ; plotter model
driver = PCL5 ; MDL plotter driver
end_plot = eject ; performs page eject at end of plot
autocenter ; Automatically center plot on page
rotate = none ; clockwise rotation
;border/pen=1/filename/time ; leave this out for no border
default_extension/auto_incExt = '000'; default extension for plotfiles
;
size=(10.6,16.6)/off=(0,0)/name=plat