Tektronix PHASER 380, Service Manual

Page: 304 / 346

9-24
Phaser 380 Color Printer
9
Checks and Adjustments
Vacuum check
Use this check to verify the actions of the vacuum pump and the solenoid valve.
In addition, you can determine if the cap/wipe/purge assembly is sealing
properly against the printhead faceplate.
1. Turn off the printer and remove the power cord.
2. Remove the top and right-side covers as explained in the topic,
“Cabinet panels and covers” on page 8-4.
3.
With a T-connector, connect the vacuum gauge to the inlet side of the
pump (the hose running between the pump and the accumulator).
This allows you to check the action of the vacuum pump and
accumulator.
4. Turn on the printer and enable the PC diagnostics as explained in the
topic “PC-based diagnostics” on page 6-24.
5.
Scroll to and select the test suite Sensor/
Actuators
. Select and run
the test
Do Vacuum Pump Test
.
Tools required
■
Magnetic screwdriver
■
Vacuum gauge
■
T-20 TORX tip
■
T-15 TORX tip
■
PC diagnostics
Figure 9-13 Connecting the vacuum gauge to the printer
40
20
0
60
-76
Outlet
Vacuum gauge
Vacuum guage connected
to the pump inlet
7-mil orifice
Solenoid valve
Vacuum pump
9661-115