Service manual

Procedure

CAUTION

Before checking the resistance or potential of the sensors, make sure

to unplug the power cord.

1-1. Measure the resistance between the drum surface and drum shaft.

Normal resistance*: 0.3

Ω

~ 0.5

Ω

Remove the charge corona unit. Then, contact the edge of the drum surface

through the space where the charge corona unit was.

1-2. Check the resistance between the drum shaft and the grounding

wire terminal.

• Remove the fly wheel securing screw and the fly wheel.

• Measure the resistance between the shaft and the grounding wire

terminal.

Normal condition*: 4

Ω

~ 5

Ω

(This value includes the bearing resistance)

* : These values come from a test machine, therefore the values are just

reference data and might not suit your machine.

Trouble-

shooting

HOW TO DETERMINE IF THE POTENTIAL SENSOR OR ID SENSOR IS DEFECTIVE

SM 6-35 A166/A187/A189

CÓPIA NÃO CONTROLADA