4-36 Phaser 6128MFP Service Manual
General Troubleshooting
Interlock Switch
1. Enter Service Diagnostics (page 4-4).
2. Open the Front Cover.
3. Remove the Imaging Unit (page 8-8) and place in a dark location.
4. Perform the Interlock Switch test: Engine Diag > Sensor Test > Interlock
Switch.
5. Open and close the Front Door while checking the information on the Control
Panel display. The Low and High values change from 0 up to 99.
6. Press the Stop button to stop the Cover Open Sensor test.
s6128mfp-076
Control Panel
Normal
Digital Input
DI- 7 L 0
Digital Input
DI- 7 L 1
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