Defeating interlocks

Different tests can be used to isolate different types of issues. For component or noise isolation, you can run the diagnostic test when the front and right doors are open. To operate the product with the doors open, the door switch levers must be depressed to simulate a closed-door position.

WARNING! Be careful when performing printer diagnostics to avoid risk of injury. Only trained service personnel should open the doors and run the diagnostics with the covers removed. Never touch any of the power supplies when the printer is plugged in or turned on.

Defeat the right-door opening/closing sensor (PS15)

1.Open the right and front doors.

2.Insert a thin piece of paper into the right-door sensor slot (callout 1).

CAUTION: Using too thick of a piece of paper to activate this sensor might dislodge the photo- interrupter body from its mounting bracket. Make sure you use a thin piece of paper to activate the sensor.

Figure 3-1Defeating door interlocks (1 of 2)

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286 Chapter 3 Solve problems

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HP Enterprise CP5525 manual Defeating interlocks, Defeat the right-door opening/closing sensor PS15