Canon IC-D320 works then will just go dead

[TechGeek]

I am working on a Canon IC-D320. The customer originally stated that they think the scanner lamp is broken because it would only copy half of the page. So after testing myself i copied 25 sheets just fine let set a few minutes (2 or 3) happen to walk by and see that the alarm, ready, and energy save light were lite up and no display. Everything was unresponsive so i unplugged it then plugged it back in and the copier motor cycled but still had all the lights on. Left unplgged over night plugged it back in and worked fine left it on all day worked just fine so for grins and giggles i unplugged and plugged in again then all same as before the copier would cycle but no display and all lights were on. SO i replaced the ENCT Power board but still does the same thing after replacing. any suggestions?

[teckat]

I am working on a Canon IC-D320. The customer originally stated that they think the scanner lamp is broken because it would only copy half of the page. So after testing myself i copied 25 sheets just fine let set a few minutes (2 or 3) happen to walk by and see that the alarm, ready, and energy save light were lite up and no display. Everything was unresponsive so i unplugged it then plugged it back in and the copier motor cycled but still had all the lights on. Left unplgged over night plugged it back in and worked fine left it on all day worked just fine so for grins and giggles i unplugged and plugged in again then all same as before the copier would cycle but no display and all lights were on. SO i replaced the ENCT Power board but still does the same thing after replacing. any suggestions?

;-)

Have you checked for proper constant outlet voltage_?
Especially > Neutral to Ground_it should be 0v\+-0.5v

[TechGeek]

Yes i did. Voltage when running is consistent at 121 , and neutral to ground is .17 to .19

[teckat]

Yes i did. Voltage when running is consistent at 121 , and neutral to ground is .17 to .19

Your neutral to ground check is to high :-\ in a 120v outlet.
"Ground" should never have any current on it. If there is more than a few mA current on a "ground" wire, there is a problem.

It should be zero, or pretty close to it. If it's not, then those ground wires probably don't have continuity all the way back to the fuse/breaker panel, where they should be connected to the neutral.