It sounds very funny but its a new install & I have done all installation procedures twice, but still C252 produces black patch during coping only. During control panel adjustment I have observed that + sign at four cotvers do not change to - sign when touched, although it gives beep. Also when all the signs are selected, orange light turns to green indicating all four points are selected.
I have reloaded firmware, and data cleared. I think there must be some NVM setting which needs to be set correctly.
Any suggestions before I start on replacing boards? Thanks in advance and best regards to all,
Ajit
I have reloaded firmware, and data cleared. I think there must be some NVM setting which needs to be set correctly.
Any suggestions before I start on replacing boards? Thanks in advance and best regards to all,

Ajit
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