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Print Quality
6-5
HP DesignJet 430, 450C and 455CA Printers
Analyzing the PrintĆQuality Plot
The PrintĆQuality Plot will contain six patterns as follows:
1 Cartridge Warm Up (See below).
2 Nozzle Print Test (See below).
3 Vertical Line Straightness Test ' page 6Ć7.
4 Color Alignment Quality Test ' page 6Ć9.
5 Color Variation Test ' page 6Ć11.
6 Banding Test ' page 6Ć12.
Test Pattern 1: Cartridge WarmĆup
This pattern warmsĆup the cartridges, leaving them in a perfect operating
condition. You can ignore this pattern and continue with Test Pattern 2.
Test Pattern 2: Nozzle Print Test
In this test all the 96 nozzles of each cartridge are tested. For each of the 4 colors
you will see the numbers 1 to 90 over the diagonally stepped lines in increments
of 5. These numbers correspond to the nozzle number that prints each step.
There are two cartridge nozzle errors (see Figure 1):
D Nozzles not printing.
D Nozzles misdirected.
Figure 1