Epson TM-U675 - Lever Motor Timing Pulse (T.P.) Detection Mechanism

Rev.D Product Overview Appendix D-13
TM-U675/U675P (with autocutter) Service Manual
Confidential
Lever motor timing pulse (T.P.) detection mechanism
The lever motor T.P. detection mechanism consists of a lever drive motor detector plate and
lever motor T.P. detector on the lever drive motor gear. It detects lever drive motor rotation and
generates the signal, which determines the timing for energizing of the lever coil, which in turn
controls opening/closing of the platen lever and opening/closing of the sub slip feed roller.
Figure D-19
Figure D-20
Lever drive motor
Lever drive motor detector plate
Lever drive motor gear
Lever motor T.P. detector
GND
High
+5V
GND
Low
When light is
interrupted
When light is emitted
Printer side
Lever drive motor detector plate
Signal level at point A