Lexmark X746de Service Manual page 142

7526
Step Questions / actions
Check for proper ADF grounding.
5
1. Remove the ADF upper case cover. See
"ADF upper case cover removal" on
page 4-224.
2. With an ohm meter, check resistance
between the feed shaft and the skew
shaft.
Does resistance measure 0 ohms?
Tighten the screws on the grounding cable.
6
Measure the resistance between the feed
shaft and the ADF upper case cover metal
bar.
Does the resistance measure 0 ohms?
Service Manual
2-102
Yes
Go to step 6.
Go to step 7.
No
Replace the steel
discharge brush. See
"ESD brush removal" on
page 4-257.
Replace the grounding
cable.
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