I have an Erika 5 Tab on which the print gets fainter as the carriage moves along to the left. This happens quite quickly, with the print becoming faint at about a quarter of the way of the carriage's travel. There is less "snap" to the sound of the slug hitting the platen as the carriage moves left. The platen is not that hard. It looks like an "on feet" adjustment to me, but I'm not sure. I also don't know how to do an on feet adjustment to these 30s - 40s Erika portables. Done it on some others, like SM machines, but don't know how I could move the platen closer to the typeguide, as that seems to be the main issue. Any thoughts or ideas? Thank you