Miscellaneous How to reset drum counter & initialize developer on Savin 816

I replaced the drum/dev unit on the Savin 816, but it still say to replace the photoconductor.
How can I reset the drum counter and initialize the developer so I can use this drum/ dev unit in the machine.
I am not a Savin tech, I am a Sharp tech and as usual my boss thinks all copiers are the same.

Thank you in advance for any help I can get on this issue.