MFC-240C does not print - despite fresh cartridges and multiple purge

MFC-240C does not print - despite fresh cartridges and multiple purge

My Brother MFC-240C prints in black, but in none of the colors. I have already installed new original Brother ink cartridges, and executed multiple Normal/Power Purge runs (using the Maintenance Mode as described in the service manual, chapter 9 / 9-43). The problem persists.