Can not duplex KM-C2230 from print side only, walk up it can duplex. I have went through device settings and after adding duplex, HDD,when that did not work I added all options that didn't work also. I know when it has a Fiery to add the second storage device. I think I'm missing something simple as a setting, or it needs added DIMM. The driver version is 1.0

If you install a Fiery + duplex unit and don't install optional memory in the copier, you normally get a C12xx error code.
If you select "two-way communication" in under the Configuration tab in the driver settings, does it detect the duplex unit?

This message has been edited. Last edited by: bep,