Thin white lines – HP Latex 3000 Printer User Manual
Page 275
If the problem persists, try adjusting tension and vacuum settings according to the table below, step by
step (a to c), until you find settings that work.
Thin white lines
These are thin white/light lines across the entire image at regular intervals, more easily seen in solid area
fills.
There are three likely causes:
●
Nozzle clogging. A printhead nozzle can be sealed temporarily, by some fibers or dirt in the ink bore.
Then not all the ink is fired and a lighter horizontal band appears. Sometimes a bigger drop with all the
accumulated ink appears at the end of this light thin line, meaning that the bore is clear then. See
Printhead health troubleshooting on page 287
.
●
Printhead alignment. This is a clear contributor to banding. If printheads are not correctly aligned, the
misplaced dots could correlate directly with the severity of the banding, by leaving lighter bands where
the ink should have been placed.
To check printhead alignment, print the printhead alignment diagnostics plot (see
). As a general rule, the biggest contributors to thin-white-line banding
caused by printhead alignment are (in this order):
◦
Intra-color alignment (alignment between the two printheads of the same color)
◦
Inter-color alignment (alignment between different colors)
Here are some tips for solving this problem:
ENWW
Advanced print-quality troubleshooting 269