Auto-Cutter Driver Circuit - Epson TM-U200 series Technical Manual

C o n fid e n tia l

Auto-cutter driver circuit

Rotating the DC motor counterclockwise or clockwise causes the auto-cutter to execute a full cut
or a partial cut (one point left uncut). The driver IC (U6) has a full-bridge configuration and
controls motor rotation, clockwise and counterclockwise.
The position of the auto-cutter blade is detected by the signal connected to P67 of the CPU.
BLOCK (1)
U5
R57
3
P100
4
P101
R58
P67
Rev. A
+24V
U6
7
VM
1 3
IN1 OUTA
2 5
IN2 OUTA
4 GND
GND
TA8428K
+5V
R34
R35
C21
Figure 2-28 Auto-cutter drive circuit
TM-U200 Series (Type B) Technical Manual
C20
CN9
1
1
2
2
3
3
4
4
GND
Mechanism Configuration and Operating Principles 2-27
Auto-cutter
AC M1
AC M2
GND
AC RES 1 2