HP PCL/PJL reference - Printer Job Language Technical Reference Manual
EN Environment Commands 6-23
REFILLTHRESHOLD Specifies as a percentage the level of 
ink remaining in the pen before a refill is 
started. 100% means that refilling takes 
place when there is no usable ink 
remaining in the pen. Lower threshold 
values cause the printer to analyze the 
density of colors of the next swaths. If 
the density is increasing, the refill is 
done as soon as the threshold value is 
reached. If the density is decreasing, 
the refill is delayed until the density 
starts increasing again or the minimum 
ink level is reached. Mid-print refill 
banding is less noticeable in lighter 
areas of a print. A threshold of 80% 
means that the printer may start refilling 
when the ink level has dropped by 80% 
of the charge level. If the charge level 
was 15.5 cc, the threshold is reached 
when 12.4 cc of usable ink remains in 
the pen.
5 to 100
REFILLTYPE Specifies when a pen refill is to take 
place. A SHARP refill is done only 
between swaths; all passes of the 
printhead for the current swath are 
completed before refilling takes place. 
An INTERLEAVED refill can be done 
between two passes of the same swath.
INTERLEAVED, 
SHARP
RENDERMODE Sets the render mode for the 
personality.
COLOR, 
GRAYSCALE
REPRINT Determines whether pages are 
reprinted after a paper jam. When 
AUTO is selected and the amount of 
RAM installed is below a printer-specific 
threshold, pages are not reprinted. If 
the amount of RAM installed is more 
than this threshold, they are reprinted. 
The ON setting causes the printer to 
reprint the job after a paper jam. OFF 
disables reprinting. 
AUTO, OFF, ON
General PJL Environment Variables (continued)
Variable Description
Sample Value 
Range










