
Service Manual
9-33
Checks and Adjustments
9
3.
With a T-connector, connect the vacuum gauge to the inlet side of the
solenoid valve. This allows you to check the action of the vacuum
pump and maintenance station seal.
4.
Turn on the printer and enable the PC diagnostics as explained in the
Chapter 6 topic, “PC-based diagnostics” on page 6-26.
5.
Run the diagnostic test Servo, Motors — Vacuum Check.
6.
Measure the vacuum pulled by the pump, it should measure a
minimum of 8.5 psig (17 in Hg, 430 mm Hg). If the reading is lower,
you should suspect a leaky maintenance station seal to the printhead
face. Next, the maintenance station itself may be defective. Lastly, the
air pump may be faulty.
Figure 9-19 Connecting the vacuum gauge to the printer
Maintenance
station
Vacuum
gauge
Air pump
Filter
9482-77
T-connector
40
20
0
60
-76