TI-59: PC-100A print head fixable?

[Tinue]

The missing pixels are surprisingly not in the discolored area of the print head. They are in parts that look clean. I swabbed the entire head with IPA quite vigorously, but this did not change anything.
Thanks for the confirmation! The print head is most likely partially damaged.
The case had heat signatures on the inside as well, but I remember that my printer back in the days showed the same thing.