Epson Stylus Scan 2000 - Electrical Circuit Operating Principles

EPSON Stylus Scan 2000
Revision A
Operating Principles
Electrical Circuit Operating Principles
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2.5 Electrical Circuit Operating Principles
EPSON Stylus Scan 2000 contains the following three electric circuit boards.
o Main: B101 Main Board
o Power Supply: B101 PSB/PSE Board
o Panel: B101 PNL Board
Refer to Figure 2-22 for the major connection of the 3 boards and their roles.
Figure 2-22. Electric Circuit layout
B101 PSB/
PSE Board
+5V
DC
+42V DC
+
4
2
V
D
C
+
5
V
D
C
+
5
V
D
C
CR Motor
PF Motor
(Pump Motor)
Thermistor
Nozzle selector
Board
B/CMY Ink
Out Sensor
Printhead
Ink End
and P-off time
counters
PE
Sensor
CR HP
Sensor
ASF Lever
Position Sensor
B101 MAIN Board
AC Input
B101
PNL
LED
Scanner
ASF Motor