Epson LQ-2550 Technical Manual page 116

REV.-A
2.3.4.8 CR HP Sensor Circuit
Figure 2-67 shows
the CR Hf' sensor circuit. This circuit determines the home
Table 2-44 shows the relationship between the
the sub CPU.
I
At the home position
Outside the home position
CARRIAGE
FLAG
- - - - - - - –
r r - ~ - _ _ - - ,
1
1 1
1
1 , 1
1
, 1
1
I 1
1
1 ,
1
1 ,
I - - - - _ L - - – _ - l _ _ _ _ _ - l
Figure 2-67. CR HP Sensor Circuit
Table 2-44. CR HP Sensor Flag and PAO Voltage
Carriage Flag Position
CN13
+5
1
Y
CM 1-5
Y
carriage flag and the voltage at the PAO terminal of
I PAO Terminal Voltage [V]
5
o
2 - 7 0
position of the
SUB CPU
(7 B)
\
I
carriage. "'""