User's Manual

Troubleshooting
1-7
HP DesignJets 500, 510 and 800 Series Printers Service Manual
HP-GL/2 color differences in different HP DesignJet
Printers
Color differences between one image printed on the HP DesignJet
500/510/800 Series and the rest of the DesignJet platforms are due
to the different chemistry of the 500/510/800 series inks compared
with the rest of the inks for other printers. This color variability
among different HP DesignJet Series Printers has always been
present. To solve the problem, try the following:
 Perform the color calibration from the driver at the time of
printing. However, that calibration is not very accurate but it may
help in the most severe cases.
 Some applications have color controls for the user to modify the
image in order to obtain the desired colors.
 Printing with PostScript reduces the problem significantly.
 Avoid very long exposures to extreme environmental conditions
after printing with glossy media (more than 12 hours at 80%
humidity may result in severe changes in color).
Banding at variable extreme environmental conditions
Since the Accuracy Calibration has been done at normal
environmental conditions, printing in extreme environmental
conditions will cause banding because the advance of the Drive
Roller does not correspond to the same conditions that the
calibration was done in. To solve the problem, try the following:
 Perform the Accuracy Calibration in the new environmental
conditions (Refer to the User’s Guide).