\u200bHi Mark
>Was this a new printer?
a used one, almost never used
>Did you test it before hacking it to be sure it worked correctly
I did. It was printing perfectly
> Do you have a spare drum and/or cartridge to try?
:-( no I don't
>Are all the connectors attached properly to the printer pcb?
as far as I can see, yes.
>Did you replace the transfer roller?
Absolutely. The transfer roller is in place (with the right side spring)
Tnks
Marc