Complex sentence: Consequently, it was a very expensive for the printer customers, since each size with another wedge had to be poured, also on the keyboard keybanks for each size was another requirement, and also extra wedges had to be purchased.
Split into simpler sentences: Consequently, it was a very expensive for the printer customers, since each size with another wedge had to be poured. Also on the keyboard keybanks for each size was another requirement, and extra wedges also had to be purchased.