HP Designjet Z3200 PostScript Photo Printer series - Manual (Page 175)

If you see horizontal lines in part 1 and also missing dashes in part 2 for the same color, the printhead
responsible needs cleaning. However, if the rectangles look solid, do not worry about just a few missing
dashes in part 2; these are acceptable because the printer can compensate for a few clogged nozzles.
Here is an example of a light gray printhead in a good state:
And here is an example of the same printhead in a bad state:
The gloss enhancer (E) cannot be seen when printed on its own, because it is a clear fluid. To make it
visible in the Image Diagnostics Print, it is printed over gray ink (G).
● In part 1 (top), the gloss enhancer is seen as a slightly different gray inner section of a gray
rectangle. On some papers the inner section may look darker, on other papers it may look lighter.
● In part 2 (bottom), the small dashes of gloss enhancer, one for each nozzle of the printhead, are
seen as small lighter gray dashes on top of a gray area.
On most plain and coated papers the gloss enhancer can barely be seen, so such papers are not suitable
for troubleshooting the gloss enhancer.
Corrective action
1. Clean any faulty printheads (see Clean the printheads on page 169 ). Then reprint the Image
Diagnostics Print to see whether the problem has been solved.
2. If the problem remains, clean the printheads again, and reprint the Image Diagnostics Print to see
whether the problem has been solved.
ENWW The Image Diagnostics Print 165
Print
-q
ua
lit
y i
s
su
es