Konica 6000 while adjusting printer gama sensor in quality adj. giving error 51

[sadanand]

Hi friends
c 6000 giving error 51 while doing Printer Gamma Sensor Adj. giving error any solution all dev. are new

[Schneider]

Manual is unhelpful with this one saying its had an error calculating the regressions on the test pattern and to "readjust" as the solution.

I always found these machines needed to be completely clean around the drum and developer units. As a first step I would be making sure it is clean around there and then go through the calibrations again.

A second though is make sure the test pattern is good and the scanner glass is clean too.