HP Designjet L25500 Printer Series - Add New Substrate and Image Quality Troubleshooting procedures

HP Designjet L25500 printer series Add New Substrate and Image Quality Troubleshooting
Hewlett-Packard 24
Problem description Solutions
Irregular or isolated vertical bands.
• Increase the vacuum in steps of 10mmH
2
O.
• In backlit applications, increase the number of passes to
20 or more and change the drying temperature up and
down in steps of 5ºC.
• If it happens at the beginning of the job, try disabling
the cutter and advancing the substrate manually about
100–150 mm before printing the first plot.
Horizontal banding
Problem
description
Cause Solutions
The banding affects
most colors; visible
bands are thick and
not well defined.
The printheads could be
misaligned. This is likely if
you performed printhead
alignment on another
substrate, or you have not
done so for a long time, or
there has been a substrate
jam.
• Perform printhead alignment. Select
the icon, choose Image
Quality Maintenance, then
Align Printheads and Auto PH
alignment.
• Try using a higher number of passes.