Mr. Pablo Mazzini reported to me that he was seeing some unwanted marks in prints. As reported by himself, this can be solved by making the corresponding ppd for scx-4500 use the 0xe algorithm only, as opposed to 0xd as of now. Simply change it in the drv file to generate a ppd for this model with the 0xe encoder.
In addition, the following printers should work with SpliX, but I don't have any confirmation or reported case. These can be included in the supported printers list page as untested. I guess its reasonably safe.
- Xerox WorkCentre PE114e (essentially the same as Samsung scx-4100)
- Toshiba eSTUDIO180S (essentially the same as Samsung scx-4200)