This code has appeared twice before on an es850 witin the last 6 months. Both time replaceing the PWB-A Bd on the hole punch fixed it. Today it did it again so I took off the hole punch till I can get a replacement Bd.. The definition of the code is:
Backup RAM data abnormality:1) Abnormality of checksum value on the finisher controller PC board is detected when the power is turned ON. 2) Abnormality of checksum value on the punch controller PC board is detected when the power is turned
Also,when I rebooted the machine, I had a F105 code that reformatting the HDD took care of.
Thanks,
Al
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