Epson Stylus COLOR 3000 - Page 61

Operating Principles
EPSON Stylus Color 3000 Service Manual
2-20
Data Bus
Address Bus
CPU
H8S/2655
(IC5)
GA
E05B45
(IC16)
THS
SWA0
SWA1
SWA2
SWA3
SWC9-11
SWC8
SWC0,2,4,6
SWC1,3,5,7
AN0
AN1
AN2
AN3
ASF_PW
ASF_PQ
CR_PW
IC_B1,M1,C1,Y1
IC_B0,M0,C0,Y0
REL
ASF_PL0,1,2
PE_F
PE_R
HP
GAP
Thermistor
ASF PW
Sensor
Paper Quantity
Sensor
CR PW Sensor
Ink Cartridge Sensor
(B,C,M,Y)
Ink End Sensor
(B,C,M,Y)
Release Sensor
PL Sensor
HP Sensor
GAP Sensor
Rear PE Sensor
Front PE Sensor
Figure 2-17. Sensor Circuit Block Diagram