Epson TM U200D Technical Reference - Page 52

TM-U200D/U200PD Technical Manual Switching from Black to Red When the Carriage, sub-ass'y (print head unit) moves in the E direction and reaches the ribbon switch area, the Lever, ribbon switch is pushed by the ribbon switch section and moved to position A (shown by the dotted lines). The Frame, ribbon ass'y is pushed upward by the Frame, ribbon push face, ribbon switch detent face falls into the Lever, ribbon switch hole of the Frame, ribbon ass'y and the Frame, ribbon ass'y is set to the red position. Releasing from Red to Black When the Carriage sub-ass'y moves (in the D direction) and reaches the ribbon release area, the Lever, ribbon release is pushed by the ribbon release section, then portion C pushes the Frame, ribbon ass'y upwaed. At this time, the ribbon switch detent face is released from the Lever, ribbon switch hole of the Frame, ribbon ass'y, the Lever, ribbon switch is returned to Lever, ribbon switch position B (shown by the solid lines) by the spring power of the Spring, ribbon release. When the Carriage sub-ass'y moves in theE direction, the Frame, ribbon ass'y and Lever, ribbon release are returned to their original positions by the spring power of the Spring, ribbon frame. Range of ribbon release Range of ribbon switch Lever, ribbon release Print head unit DE Ribbon Ribbon switch release section section Lever, ribbon switch A B C Lever, ribbon switch hole Frame, ribbon push face Ribbon switch detent face Figure 2-14 Ribbon Switching Rev. B Mechanism Configuration and Operating Principles