HP Latex 3000 Printer - Manual (Page 294)

Each section is used for a different purpose.
1. Section 1 is a set of mid-tone areas printed with a single ink using a 6-pass print mode with nozzle
substitution.
2. Section 2 shows plainly which nozzles in each printhead are printing and not printing.
For reference, each one of the 5 areas (square in the picture and 1 to 5) of each color corresponds to
approximately 1000 nozzles.
Drop detector diagnostics
Execute the Drop Detector diagnostics from the Print Care window. This will identify blocked nozzles in each
printhead.
Decision table
The following table summarizes the data that can be seen in each diagnostic, the possible causes, and the
decisions.
Mid-tones (section 1) Nozzle health (sectiion
2) Drop detector Possible cause Action
No banding < 300 blocked (all
colors) < 300 blocked (all
colors) Other Continue banding
troubleshooting.
Banding in all colors < 300 blocked (all
colors) < 300 blocked (all
colors) Substrate advance, or
other Check the substrate-
advance sensor.
Continue banding
troubleshooting.
Banding in one color < 300 blocked (that
color) < 300 blocked (that
color) Other Continue banding
troubleshooting.
288 Chapter 11 Troubleshoot ink cartridge and printhead issues ENWW