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EPSON Stylus Photo 750 Revision A
Operating Principles Operating Principles of Electric Circuit 37
2.2.2.8 Carriage Motor(CR Motor) Drive Circuit
CR motor is driven by IC11 mounted on the C259 main control board.
4-phase 200-pole Hybrid type stepping motor is used as a CR Motor
and is driven by bi-pola constant drive control.
Figure 2-10. Carriage Motor Drive Circuit
M6252(IC15)
-
+
1
2
3
C90A05
(IC1)
111
DA0
Current
Detection
E05B58**(IC2)
Rotor
A
/A
B
/B
1
3
2
4
CN7
CRENBA
CRENBB
CRPHAA
CRPHAB
192
201
191
202
CRIA0
CRIA1
CRIA2
CRIA3
CRIB0
CRIB1
CRIB2
CRIB3
IA1
IA2
IA3
IA4
IB1
IB2
IB3
IB4
PHASE1
PHASE2
ENBL1
ENBL2
Vref1
Vref2
LB1847(IC11)
17
2
13
26
16
27
25
24
23
22
18
19
20
21
193
194
195
196
200
199
198
197
OUTA
OUTA-
OUTB
OUTB-
7
6
9
8
op10