EPSON Stylus Scan 2000
Revision A
Operating Principles
Electrical Circuit Operating Principles
60
2.5.2.8 CR Motor Drive Circuit
IC11(LB1847) on B101 Main board is used for driving CR motor. In the IC, Bi-polar
drive PWM current control type is performed, making it possible to provide stable
current to each phase of motor.
The figures below show carriage motor drive circuit.
Figure 2-32. Carriage Motor Drive Circuit
E05B588 (IC2)
LB1847 (IC11)
IA1
CRIA1
CRIA2
CRIA3
CRIB0
CRIB1
CRIB2
CRIB3
CRPHAA
CRPHAB
CRENBA
CRPHBB
193
194
195
196
200
199
198
197
191
202
192
201
25
24
23
22
18
19
20
21
27
16
26
17
13
2
IA2
IA3
IA4
IB1
IB2
IB3
IB4
PHASE1
ENBL1
Vref1
Vref2
OUT
PHASE2
OUTB-
ENBL2
OUTA
OUTA-
7
6
8
9
C90A05
(IC1)
DA0
111
M6252(IC15)
Current
Detection
4
3
-
+
1
2
3
2
CN7
A
/A
/B
B
Rotor
CRIA0
Summary of Contents for Stylus Scan 2000
Page 1: ...EPSON EPSON EPSON France S A Stylus SCAN 2000 SERVICE MANUAL PRODUIT ...
Page 2: ... SEIJ99006 SERVICE MANUAL EPSONSTYLUSScan2000 All in one printer scanner and copier ...
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 30: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 62: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 84: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 118: ...C H A P T E R 5 ADJUSTMENT ...
Page 133: ...C H A P T E R 6 MAINTENANCE ...
Page 144: ...C H A P T E R 7 APPENDIX ...
Page 155: ...Stylus Scan 2000 Revision A Appendix Exploded Diagrams 154 ...
Page 156: ...Stylus Scan 2000 Revision A Appendix Exploded Diagrams 155 ...
Page 157: ...Stylus Scan 2000 Revision A Appendix Exploded Diagrams 156 ...
Page 158: ...Stylus Scan 2000 Revision A Appendix Exploded Diagrams 157 ...
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