Epson TM-H6000 Service Manual page 100

Confidential
Carriage drive pulley
Bottom of form (B.O.F.) detection mechanism
The B.O.F. detection mechanism detects whether or not slip paper has been inserted, and the
rear edge of the paper when printing is performed.
The mechanism is located near the right end of where paper is inserted to ensure it can
determine whether or not a slip has been inserted and for proper positioning.
The B.O.F. detector is comprised of an LED and photo resistor. When a paper slip is inserted,
the light rays between the LED and photo resistor are interrupted, resulting in a change in the
photo resistor output level.
This change in output level is used as a detection signal to determine whether or not a slip has
been inserted.
Slip paper
Document table
Top of form (T.O.F.) detection mechanism
The T.O.F. detection mechanism detects whether or not a slip has been inserted. The mechanism
is located near the top (before the form stopper) to ensure it can determine whether or not a slip
has been inserted and for proper positioning.
Rev. A
Carriage belt
Carriage motor gear
Paper guide
B,O,F detector assembly
Screening plate
Carriage detector
Figure D-12
Slip paper
Figure D-13
TM-H6000/H6000P Service Manual
Carriage drive
transmission gear
Carriage transmission pulley
Printer side
+5V
High
When light is
interrupted
GND
GND Signal level at point A
Product Overview Appendix D-9
When light is emitted
Low