Adjusting Ink Conductivity - HP Indigo press 3050 User Manual

Reduction in ink density
(percent)
0.1
0.2
0.3
0.4
0.5
3
Figure 8-9. Ink tank plug
4
5
6
Figure 8-10. Ink Properties window
Note If the ink density keeps rising above 2.0, clean the pump and density sensor, and then check
the density again. See 'Cleaning the ink pump' on page 109. If the problem persists, call your
HP Indigo service center.

Adjusting ink conductivity

The ink conductivity in the ink tanks should be between 90 to 100 pmho/cm at a working
temperature of 30° C ±1° (86° F ±1°). Conductivity control is automated. Check the
imaging agent container weekly, and refill it if necessary.
106 Chapter 8 Handling ink
Drain 0.19 liter (6.4 ounces) of ink for every 0.1 percent decrease in ink density.
Replace the drained ink with imaging oil. Pour imaging oil directly into the ink tank.
On the control panel, click the Diagnostics menu, and then select Ink. The Inks
Properties window opens.
In the Inks Properties window, click the relevant pump to turn it on.
Monitor the ink density in the display.
Amount of drained ink
(liter)
0.19
0.36
0.52
0.67
0.80
Remove cap and pour
imaging oil
Amount of drained ink
(ounces)
6.4
12.2
17.6
22.7
27.1
ENWW