MX-B381, MX-B401 (serv.man8). INSTALLATION MANUAL - Sharp Copying Equipment Service Manual (repair manual). Page 44

MX-B381/B401  DEHUMIDIFIER HEATER KIT (SERVICE PARTS) FOR THE MAIN UNIT  13 – 4

1)

Cut off the notch of the square hole for the dehumidifier heater
switch on the rear cabinet.

2)

Attach the heater switch label EX Pa (No.2) to the concaved
section of the rear cabinet.
* Be careful of the attachment direction of the heater switch

label EX Pa.

3)

Cut the inside section of the rear cabinet where the harness
passes through.

1)

Where the "Caution: HOT" label will be placed. (see illustra-
tion). Clean with alcohol.

2)

Attach the "Caution: HOT" label to the paper tray.

1)

Turn ON the dehumidifier heater switch. (Press the upper sec-
tion of the switch.)

2)

Measure the resistance between the earth terminal and the AC
terminal at the lead edge of the AC cord with a tester, and
check to confirm that the resistance is infinite.
* Check the resistance between the non-grounding side (Live)

and the grounding side and between the non-grounding side
(Neutral) and the grounding side.

* If there is conduction between the grounding terminal and

the AC terminal, the harness on the primary side may be in
contact with the grounding wire (the wire may be pinched or
in some trouble). In this case, disassemble it again and
check to confirm that there is no pinching or wiring mistake.

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0.5mm