Epson 890N Service Manual - Page 107

Table 7-9., Connector Pin Assignment - CN15, Printhead CN15, CN16, R side CN15: upper connector

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EPSON FX-890/2190 † Printhead (CN15, CN16) „ R side (CN15: upper connector) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Table 7-9. Connector Pin Assignment - CN15 I/O Signal Name Function O HEAD3 #3 Head Data - - Not used O HEAD15 #15 Head Data - C5 #2, 5, 11 Common O HEAD2 #2 Head Data - C6 #3, 15 Common O HEAD5 #5 Head Data O HEAD16 #16 Head Data O HEAD11 #11 Head Data - C7 #16, 17 Common O HEAD17 #17 Head Data - C8 #4, 8, 14 Common - - Not used O HEAD14 #14 Head Data O HEAD4 #4 Head Data O HEAD8 #8 Head Data Revision B „ F side (CN16: lower connector) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Table 7-10. Connector Pin Assignment - CN16 I/O Signal Name Function - - Not used O HEAD1 #1 Head Data O HEAD9 #9 Head Data O HEAD13 #13 Head Data O HEAD7 #7 Head Data - C1 #1, 7, 13 Common - - Not used O HEAD18 #18 Head Data - C2 #9 Common O HEAD12 #12 Head Data - C3 #10, 18 Common - C4 #6, 12 Common - - Not used O HEAD6 #6 Head Data O HEAD10 #10 Head Data I TH Thermistor I TH Thermistor Appendix Connector Summary 107

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EPSON FX-890/2190
Revision B
Appendix
Connector Summary
107
Printhead (CN15, CN16)
R side (CN15: upper connector)
F side (CN16: lower connector)
Table 7-9.
Connector Pin Assignment - CN15
Pin No.
I/O
Signal Name
Function
1
O
HEAD3
#3 Head Data
2
–
–
Not used
3
O
HEAD15
#15 Head Data
4
–
C5
#2, 5, 11 Common
5
O
HEAD2
#2 Head Data
6
–
C6
#3, 15 Common
7
O
HEAD5
#5 Head Data
8
O
HEAD16
#16 Head Data
9
O
HEAD11
#11 Head Data
10
–
C7
#16, 17 Common
11
O
HEAD17
#17 Head Data
12
–
C8
#4, 8, 14 Common
13
–
–
Not used
14
O
HEAD14
#14 Head Data
15
O
HEAD4
#4 Head Data
16
O
HEAD8
#8 Head Data
Table 7-10.
Connector Pin Assignment - CN16
Pin No.
I/O
Signal Name
Function
1
–
–
Not used
2
O
HEAD1
#1 Head Data
3
O
HEAD9
#9 Head Data
4
O
HEAD13
#13 Head Data
5
O
HEAD7
#7 Head Data
6
–
C1
#1, 7, 13 Common
7
–
–
Not used
8
O
HEAD18
#18 Head Data
9
–
C2
#9 Common
10
O
HEAD12
#12 Head Data
11
–
C3
#10, 18 Common
12
–
C4
#6, 12 Common
13
–
–
Not used
14
O
HEAD6
#6 Head Data
15
O
HEAD10
#10 Head Data
16
I
TH
Thermistor
17
I
TH
Thermistor