Epson Stylus Scan 2000 Service Manual

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

Epson Stylus Scan 2000 Specifications

General

Brand	Epson
Model	Stylus Scan 2000
Category	All in One Printer
Language	English