Once the protruding plastic knobs are removed, I have moved/shifted the plate with the copper strips up slightly on the assumption that the copper would make better contact. It's been some time since I had to do that, but that seemed to me to make a...
This worked for me: The two round plastic blobs circled in the photo above must be (carefully) skimmed smooth. I used my finger nail for this. The BGBK cartridge then worked just fine. Reasoning behind my solution? ..... In the cheaper copie...
