Variation Problem: | If the upper box shading is never visible or is | |
| visible at a very low percentage, it is an indication | |
| that the cartridge is producing incorrect size ink | |
| drops (see Figure 8). | |
Corrective Action: | Try the following steps: | |
| 1 Replace the failing cartridge and print the | |
| ||
| 2 If the error continues try the following: | |
| D | Replace the Trailing Cable ' page |
| D | Replace the Carriage Assembly ' page |
Only replace one component at a time and check if the problem has gone before replacing another component Using this procedure you will be able to determine exactly which component failed
Test Pattern 6: Banding Test
This Test pattern is a long dark stripe and is NOT numbered on the
Symptoms
Random dark or light bands in area fills. There are two types of banding:
DNegative Banding - This means that consecutive swaths overlap each other, creating dark bands.
DPositive Banding - This means that consecutive swaths do not touch, thus leaving a small gap between each other. This then causes white (or lighter) bands.
Figure 9
HP DesignJet 430, 450C and 455CA Printers | Print Quality |