Epson TM U200D - B/W Dot-matrix Printer Technical Manual page 143

4. Perform the adjustment at two positions.
Rev.B
Frame,
ribbon knob
Portion A
Shaft holder,
adjustment roller
Wide
Narrow
(Single-color Print Version)
TM-U200D/U200PD Technical Manual
Frame, ribbon ass'y
Scaling gauge
Print head unit
Spring, paper
Platen
hold plate
Disassembly, Assembly, and Adjustment 5-47