Xerox ii LINXSolid Inkjet 100 Service Manual page 176

4-32 ii LINX™ Solid Inkjet 100 Service Manual
Figure 4-12. Connecting the Vacuum Gauge To The Printer
4. Turn on the printer and enable the PC diagnostics as explained
in the topic, "PC-based Diagnostics."
5. Run the "Purge Printhead test" from the "Head Maintenance"
test suite. When the solenoid valve is energized, you should
see the vacuum gauge jump to about the value 51 cm Hg (20 in.
Hg, 10 psi) and within 4 to 6 seconds bleed off to 0.
If the vacuum does not reach the expected value:
• There is a leak in the vacuum system from the pump
• The accumulator and their plumbing or the vacuum
pump is defective
If the vacuum drops to zero immediately, the cap/wipe/purge
unit is not sealed to the printhead.
This test allows you to check the action of the vacuum as it is applied
to the printhead; the cap/wipe/purge assembly should be sharply
sucked against the printhead faceplate. If it is not, there may be an
Vacuum guage
2 0
4 0
T-connector
0
6 0
- 7 6
Vacuum
assembly
Cap/Wipe/Purge
vacuum hose
0388-35