Defeating interlocks
Dierent tests can be used to isolate dierent types of issues. For assembly or noise isolation, run the
diagnostic test when the front door or right door is open. To operate the printer with the doors open, the
interlock switch levers must be depressed to simulate a closed-cover position.
WARNING! Be careful when performing printer diagnostics to avoid risk of injury. Only trained service
personnel should open and run the diagnostics with the covers removed. Never touch any of the power
supplies when the printer is turned on.
TIP: Fold a sti piece of paper, for example a business card or index card, into a 10 mm (.375 in) strip, and
insert the strip into the slots for the front door and right door logic switches.
1. Open the front door, and then insert a folded piece of paper into one slot.
Figure 2-50 Defeating interlocks (front door)
ENWW Tools for troubleshooting 145
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